Moscow on the Hudson (1984)
1984 was a make or break year for Williams. He had finished a wildly successful stint on an immensely popular sitcom and was one of the hottest stand-up comics going, but his attempts to break into film had been somewhat mixed. His performance in "The World According to Garp" had been better received than the film itself and though he was actually quite good in Robert Altman’s "Popeye," the movie itself was a bizarre failure. Paul Mazursky’s "Moscow on the Hudson" has perhaps not aged terribly well, with its Cold War politics and its depiction of the immigrant experience in NYC, but Williams delivers a crushing sadness to the role that showed that he was more than just a manic comedian.