Tom Cruise in Endless Love (1981)
The only people to benefit commercially from this story of two star-crossed lovers (played by Brooke Shields and Martin Hewitt) were Diana Ross and Lionel Richie, who sang the hit song of the same name. The movie itself, directed by Franco Zefferelli, was pretty much a disaster. Tom Cruise makes a quick appearance as Billy -- he auditioned for the lead but was beat out by Hewitt. Not only did Cruise, the future Top Gun hunk/Oscar nominee/media magnet, make his big-screen debut in this sappy teen flick, James Spader, Jamie Gertz, and Ian Ziering were also rookies in Endless Love.