Mike and Dave Need Wedding Dates is a 2016 American comedy film directed by Jake Szymanski and written by Andrew J. Cohen and Brendan O'Brien. The film stars Zac Efron and Adam DeVine as the title characters, who put out an ad for dates to their sister's wedding, and features Anna Kendrick and Aubrey Plaza as the girls who answer the ad. The film is based on a real Craiglist ad placed by two brothers who wanted dates for their cousin's wedding that went viral in February 2013, which they then turned into a book, Mike and Dave Need Wedding Dates: and A Thousand Cocktails.