If you're a romantic-comedy buff, chances are you've seen When Harry Met Sally. The 1989 classic is regarded as one of the bests in the genre and attempts to answer the question of all questions: Can men and women really be just friends? The film was originally called 'How They Met.' The creative team had a tough time figuring out exactly what to call this film, so Rob Reiner held a title-naming contest, rewarding the best pitch with a full case of champagne. Nora Ephron also came up with Boy Meets Girl, Just Friends, Words of Love, and Harry, This is Sally.

Source: Good Housekeeping