In 1960, he won the Golden Globe Award for New Star of the Year for his performance in Roger Corman's House of Usher, and later moved to Italy to work in Spaghetti Westerns.

[5] In 1960, Damon won a Golden Globe Award as a "Star of Tomorrow" for his performance in the film House of Usher.

[8] Upon returning to the U.S. in 1977, he founded Producers Sales Organization (PSO), which sold American pictures to international distributors, becoming the first such company to compete with the major studios.

[17] Damon's productions have grossed over $2 billion in theatrical box office worldwide[18] and have garnered 10 Oscar nominations.

He has been involved in the international licensing of over 300 feature length pictures, including Never Say Never Again starring Sean Connery, Prizzi's Honor with Jack Nicholson and Anjelica Huston, Once Upon A Time In America with Robert De Niro and James Woods, The Cotton Club with Richard Gere, and The Final Countdown starring Kirk Douglas.

[21] Damon died of natural causes in Los Angeles in 2024 at the age of 91 with his wife, actress Margaret Markov, and two children by his side.