The chemistry between Julia Roberts and Richard Gere was so palpable that Hollywood decided we needed to see it on the big screen twice. So, in 1999, the pair teamed up again for "Runaway Bride," about a woman who seems to want to get married, but can't bring herself to take those vows so she runs each time. Gere played the reporter sent to cover this woman who just couldn't seem to take the plunge. Of course, Gere and Roberts' characters fell in love with their chemistry shining through.

Even "Runaway Bride" didn't match the success of "Pretty Woman" and the film's director Gary Marshall once said, "You can fake anything in this business except chemistry. When two people kiss, the audience knows if there's chemistry or not, and Richard and Julia had great chemistry," (via Closer Weekly).

In fact, it was Roberts who managed to convince Gere into making movie history with their first film. "We couldn't find anybody that we wanted [to play Edward]," Julia once said, so she took matters into her own hands to convince him. "I just said, 'You have to do this movie.' I kind of pleaded with him in a very real way."