There are many variations on this basic plotline. Sometimes, instead of the two lead characters ending up in each other's arms, another love match will be made between one of the principal characters and a secondary character (e.g., My Best Friend's Wedding and My Super Ex-Girlfriend). Alternatively, the film may be a rumination on the impossibility of love, as in Woody Allen's film Annie Hall. The basic format of a romantic comedy film can be found in much earlier sources, such as Shakespeare plays like Much Ado About Nothing and A Midsummer Night's Dream.
Some comedy films, such as Knocked Up, combine themes of romantic comedies and stoner comedies, creating a subgenre that appeals to both men and women. Often known as "bromance", such films usually use sexual elements which bring the two characters together. Films in this genre include American Pie 2 and even Wedding Crashers.