Infinity is a 1996 American biographical drama film about the romantic life of physicist Richard Feynman. Feynman was played by Matthew Broderick, who also directed and co-produced the film. Broderick's mother, Patricia Broderick, wrote the screenplay, which was based on the books Surely You're Joking, Mr. Feynman! and What Do You Care What Other People Think?, both written by Feynman and Ralph Leighton. It is the only film Broderick has ever directed.