Romantic comedies tug at the heartstrings like no other film genre. Called rom-coms for short, these movies can make or break actors' careers, and their rom-com roles link them forever with their co-stars in fans' imaginations. Your favorite couple might be Richard Gere and Julia Roberts, or maybe Billy Crystal and Meg Ryan - the list goes on. 91% of people can't name each of these 50 fabulous rom-coms from just one screenshot. Can you? Can your friends?