In 1969, after the Warsaw Pact invasion, Passer and Forman left Czechoslovakia together. Both proceeded to the United States, with Forman becoming an Academy Award-winning filmmaker. Passer went on to make several prominent American films such as "Born to Win" (1971), a junkie drama starring George Segal and Karen Black, and "Cutter's Way" (1981), a dramatic thriller starring Jeff Bridges and John Heard.