The longtime companion of late filmmaker James Bridges, Larson co-produced such Bridges films as The Paper Chase (1973), Urban Cowboy (1980, with John Travolta) and Bright Lights, Big City (1988). He also worked on Sept. 30, 1955 (1977), Continental Divide (1981, with John Belushi), Mike's Murder (1984) and Perfect (1985, again with Travolta).
With the exception of Smallville Jack has appeared in every live action version of the Superboy/Superman story since the end of his 1950's seriesThe Adventures of Superman. He has also contributed commentaries and featurette appearances for several Superman DVD releases.
Jack is an accomplished playwright and opera librettist.
Jack attended the same college as his "Adventures Of Superman" co-star George Reeves, Pasadena Junior College.
Jack was friends with James Dean.
Jack has refused to do any public appearances since a 1988 celebration of Superman's 50th Anniversary in Cleveland, Ohio, at which he was wearing an expensive Italian-made linen suit that was ruined by ink stains from autograph-seekers.
Jack has said that he never wanted to play Jimmy Olsen, but his agent told him to take the role and the money that went with it, believing it would never be seen by anyone.
Jack's home was designed by the famed architect, Frank Lloyd Wright.
Jack appears as Bo, the bartender in "Superman Returns." (2006)
Participates in UCLA's scholarship program established in the name of the late James Bridges for young directors.
Jack was the life-partner to director James Bridges. Their Relationship lasted over 30 years until Bridges death.
Jack Larson (speaking about George Reeves, who was contracted to direct and star in a seventh season of 26 episodes of The Adventures of Superman at the time of his death): I know George was depressed. I know life was a mess for him. I don't think the 26 episodes meant a lot to him. It meant a lot to me - I needed the money.