99		27 Dresses (Comedy, Romance, 2008)
92		Two Weeks Notice (Comedy, Romance, 2002)
90		Made of Honor (Comedy, Romance, 2008)
90		Baby Mama (Comedy, Romance, 2008)
84		Hitch (Comedy, Romance, 2005)
84		When in Rome (Comedy, Romance, 2010)
82		That Awkward Moment (Comedy, Romance, 2014)
81		In Her Shoes (Comedy, Drama, Romance, 2005)
81		Rumor Has It... (Comedy, Drama, Romance, 2005)
81		Forces of Nature (Comedy, Romance, 1999)
79		A Good Old Fashioned Orgy (Comedy, Romance, 2011)
79		Just Go with It (Comedy, Romance, 2011)
78		200 Cigarettes (Comedy, Drama, Romance, 1999)
78		About Time (Comedy, Drama, Fantasy, 2013)
78		Laws of Attraction (Comedy, Romance, 2004)
77		The Other Woman (Comedy, Romance, 2014)
76		The Bounty Hunter (Action, Comedy, Romance, 2010)
75		Bride Wars (Comedy, Romance, 2009)
75		The Accidental Husband (Comedy, Romance, 2008)
75		Pretty Woman (Comedy, Romance, 1990)
74		Mamma Mia! (Comedy, Family, Musical, 2008)
72		Playing by Heart (Comedy, Drama, Romance, 1998)
72		Four Weddings and a Funeral (Comedy, Drama, Romance, 1994)
71		Friends with Kids (Comedy, Drama, Romance, 2011)
71		Runaway Bride (Comedy, Romance, 1999)
69		Wedding Crashers (Comedy, Romance, 2005)
69		Must Love Dogs (Comedy, Romance, 2005)
69		A Few Best Men (Comedy, Romance, 2011)
69		Monster-in-Law (Comedy, Romance, 2005)
69		Going the Distance (Comedy, Romance, 2010)
69		Barney's Version (Comedy, Drama, 2010)
68		Husbands and Wives (Comedy, Drama, Romance, 1992)
68		Last Vegas (Comedy, Romance, 2013)
68		How to Lose a Guy in 10 Days (Comedy, Romance, 2003)
68		A Guy Thing (Comedy, Romance, 2003)
67		The Sweetest Thing (Comedy, Romance, 2002)
67		The Wedding Planner (Comedy, Romance, 2001)
67		New York, I Love You (Comedy, Drama, Romance, 2008)
67		Run, Fatboy, Run (Comedy, Romance, Sport, 2007)
67		The Wedding Singer (Comedy, Music, Romance, 1998)
67		Laggies (Comedy, Romance, 2014)
66		Something Borrowed (Comedy, Drama, Romance, 2011)
65		13 Going on 30 (Comedy, Fantasy, Romance, 2004)
65		Don Jon (Comedy, Drama, Romance, 2013)
65		My Best Friend's Girl (Comedy, Romance, 2008)
65		I Love You, Man (Comedy, Romance, 2009)
64		Heartbreakers (Comedy, Crime, Romance, 2001)
64		I Don't Know How She Does It (Comedy, Romance, 2011)
63		Anything Else (Comedy, Romance, 2003)
63		Anchorman 2: The Legend Continues (Comedy, 2013)
63		(500) Days of Summer (Comedy, Drama, Romance, 2009)
63		Beautiful Thing (Comedy, Drama, Romance, 1996)
62		The Wackness (Comedy, Drama, Romance, 2008)
62		Back to School (Comedy, Romance, Sport, 1986)
62		The Banger Sisters (Comedy, Drama, 2002)
62		Someone Like You... (Comedy, Romance, 2001)
62		Angus, Thongs and Perfect Snogging (Comedy, Drama, Romance, 2008)
62		Serendipity (Comedy, Romance, 2001)
61		The Hangover (Comedy, 2009)
61		The Family Stone (Comedy, Drama, Romance, 2005)
61		Greenberg (Comedy, Drama, Romance, 2010)
60		Intolerable Cruelty (Comedy, Crime, Romance, 2003)
60		Uptown Girls (Comedy, Drama, Romance, 2003)
60		In & Out (Comedy, Romance, 1997)
59		L'arnacoeur (Comedy, Romance, 2010)
59		What's Your Number? (Comedy, Romance, 2011)
59		The Squid and the Whale (Comedy, Drama, 2005)
59		17 Again (Comedy, Drama, Family, 2009)
59		The Back-up Plan (Comedy, Romance, 2010)
59		You, Me and Dupree (Comedy, Romance, 2006)
58		Bedazzled (Comedy, Fantasy, Romance, 2000)
58		Night at the Museum (Action, Adventure, Comedy, 2006)
58		The Wedding Banquet (Comedy, Drama, Romance, 1993)
58		Bringing Down the House (Comedy, 2003)
57		Forgetting Sarah Marshall (Comedy, Drama, Romance, 2008)
57		Say It Isn't So (Comedy, Romance, 2001)
57		Hollywood Ending (Comedy, Romance, 2002)
57		He's Just Not That Into You (Comedy, Drama, Romance, 2009)
57		Rat Race (Adventure, Comedy, 2001)
56		Barton Fink (Comedy, Drama, 1991)
56		Something New (Comedy, Drama, Romance, 2006)
56		Ride Along 2 (Action, Comedy, 2016)
56		Cyrus (Comedy, Drama, Romance, 2010)
56		An Ideal Husband (Comedy, Romance, 1999)
56		Analyze This (Comedy, Crime, 1999)
55		Fear and Loathing in Las Vegas (Adventure, Comedy, Drama, 1998)
55		My Best Friend's Wedding (Comedy, Romance, 1997)
55		Paper Man (Comedy, Drama, 2009)
55		Mallrats (Comedy, Romance, 1995)
55		Terms of Endearment (Comedy, Drama, 1983)
55		The War of the Roses (Comedy, Romance, 1989)
55		Rumble in the Bronx (Action, Comedy, 1995)
55		Summer School (Comedy, Romance, 1987)
55		License to Wed (Comedy, Romance, 2007)
55		Can't Hardly Wait (Comedy, Romance, 1998)
54		New Year's Eve (Comedy, Romance, 2011)
54		Arthur (Comedy, Romance, 2011)
54		My Big Fat Greek Wedding (Comedy, Family, Romance, 2002)
54		No Strings Attached (Comedy, Romance, 2011)
54		Rory O'Shea Was Here (Comedy, Drama, 2004)
54		The Wedding Date (Comedy, Romance, 2005)
54		Guess Who (Comedy, Romance, 2005)
54		The Holiday (Comedy, Romance, 2006)
54		Priceless (Comedy, Romance, 2006)
54		Love and Other Disasters (Comedy, Romance, 2006)
53		The Big Bounce (Comedy, Crime, 2004)
53		Just Married (Comedy, Romance, 2003)
53		The Ice Harvest (Comedy, Crime, Drama, 2005)
53		My Boss's Daughter (Comedy, Romance, 2003)
53		The Dictator (Comedy, Romance, 2012)
53		American Wedding (Comedy, Romance, 2003)
53		Blast from the Past (Comedy, Drama, Romance, 1999)
52		The Invention of Lying (Comedy, Fantasy, Romance, 2009)
52		Green Card (Comedy, Drama, Romance, 1990)
52		Sex Tape (Comedy, Romance, 2014)
52		Hasee Toh Phasee (Comedy, Romance, 2014)
52		Chaos Theory (Comedy, Drama, Romance, 2008)
52		Think Like a Man Too (Comedy, Romance, 2014)
52		The Wedding Ringer (Comedy, 2015)
52		The Night Before (Comedy, 2015)
51		Factotum (Comedy, Drama, Romance, 2005)
51		The Castle (Comedy, Drama, 1997)
51		Short Cuts (Comedy, Drama, 1993)
51		Made (Comedy, Crime, Drama, 2001)
51		Wonder Boys (Comedy, Drama, 2000)
51		Imagine Me & You (Comedy, Drama, Romance, 2005)
51		The Switch (Comedy, Drama, Romance, 2010)
51		The Last Kiss (Comedy, Drama, Romance, 2006)
50		Grumpier Old Men (Comedy, Romance, 1995)
50		So I Married an Axe Murderer (Comedy, Romance, 1993)
50		Hot Rod (Comedy, 2007)
50		There's Something About Mary (Comedy, Romance, 1998)
50		Safety Not Guaranteed (Comedy, Drama, Romance, 2012)
49		Let's Go to Prison (Comedy, Crime, 2006)
49		Fanboys (Adventure, Comedy, Drama, 2009)
49		Mrs. Doubtfire (Comedy, Drama, Family, 1993)
49		Bridget Jones's Diary (Comedy, Drama, Romance, 2001)
49		Sleeping with Other People (Comedy, Drama, Romance, 2015)
49		Suicide Kings (Comedy, Drama, Mystery, 1997)
49		Clerks II (Comedy, 2006)
49		Beaches (Comedy, Drama, Music, 1988)
49		Maid in Manhattan (Comedy, Drama, Romance, 2002)
48		Keeping the Faith (Comedy, Drama, Romance, 2000)
48		Wake Up Sid (Comedy, Drama, Romance, 2009)
48		As Good as It Gets (Comedy, Drama, Romance, 1997)
48		That's My Boy (Comedy, 2012)
48		My Big Fat Greek Wedding 2 (Comedy, Family, Romance, 2016)
48		Delivery Man (Comedy, Drama, 2013)
47		The Nanny Diaries (Comedy, Drama, Romance, 2007)
47		A Night at the Roxbury (Comedy, Music, Romance, 1998)
47		Something to Talk About (Comedy, Drama, Romance, 1995)
47		Sleepless in Seattle (Comedy, Drama, Romance, 1993)
47		50/50 (Comedy, Drama, Romance, 2011)
47		The Secret Life of Walter Mitty (Adventure, Comedy, Drama, 2013)
47		Entourage (Comedy, 2015)
47		The Proposal (Comedy, Drama, Romance, 2009)
47		One Night at McCool's (Comedy, Crime, 2001)
47		3 Idiots (Comedy, Drama, 2009)
47		Tomcats (Comedy, 2001)
47		Much Ado About Nothing (Comedy, Drama, Romance, 1993)
47		Waitress (Comedy, Drama, Romance, 2007)
47		New York Stories (Comedy, Drama, Romance, 1989)
47		You Kill Me (Comedy, Crime, Romance, 2007)
47		The SpongeBob SquarePants Movie (Animation, Adventure, Comedy, 2004)
46		Just Like Heaven (Comedy, Fantasy, Romance, 2005)
46		Radio Days (Comedy, 1987)
46		Tiny Furniture (Comedy, Drama, Romance, 2010)
46		This Is Spinal Tap (Comedy, Music, 1984)
46		Human Traffic (Comedy, Music, 1999)
46		The Kids Are All Right (Comedy, Drama, Romance, 2010)
45		Flirting with Disaster (Comedy, 1996)
45		The House Bunny (Comedy, Romance, 2008)
45		Mafia! (Comedy, Crime, 1998)
45		Miss March (Comedy, Romance, 2009)
45		I Love You, Beth Cooper (Comedy, Romance, 2009)
45		My Life in Ruins (Comedy, Romance, 2009)
45		The Ugly Truth (Comedy, Romance, 2009)
45		Post Grad (Comedy, Romance, 2009)
45		All About Steve (Comedy, Romance, 2009)
45		Crocodile Dundee (Adventure, Comedy, 1986)
45		Knockin' on Heaven's Door (Action, Crime, Comedy, 1997)
45		Yes Man (Comedy, Romance, 2008)
45		Easy Virtue (Comedy, Romance, 2008)
45		New in Town (Comedy, Romance, 2009)
45		Vegas Vacation (Comedy, Family, 1997)
45		Whatever Works (Comedy, Romance, 2009)
45		Zack and Miri Make a Porno (Comedy, Romance, 2008)
45		What to Expect When You're Expecting (Comedy, Drama, Romance, 2012)
45		Knocked Up (Comedy, Romance, 2007)
45		Good Luck Chuck (Comedy, Romance, 2007)
45		Celeste & Jesse Forever (Comedy, Drama, Romance, 2012)
45		Shall We Dance (Comedy, Drama, Romance, 2004)
45		Miss Pettigrew Lives for a Day (Comedy, Romance, 2008)
45		The Ten (Comedy, Romance, 2007)
45		Eagle vs Shark (Comedy, Romance, 2007)
45		Because I Said So (Comedy, Romance, 2007)
45		I Now Pronounce You Chuck & Larry (Comedy, Romance, 2007)
45		The Rebound (Comedy, Romance, 2009)
45		Playing for Keeps (Comedy, Romance, Sport, 2012)
45		The Heartbreak Kid (Comedy, Romance, 2007)
45		BASEketball (Comedy, Sport, 1998)
45		Sydney White (Comedy, Romance, 2007)
45		War Dogs (Comedy, Crime, Drama, 2016)

Notes: Movies similar to What Happens in Vegas, Movies like What Happens in Vegas, Comedy, Romance, Tom Vaughan, Cameron Diaz, Ashton Kutcher, Rob Corddry, Lake Bell, Films, Video, Movie Similarities