During World War II, he served in the Signal Corps, in which he wrote and edited technical training films.

These include adaptations of Lin Carter's Thongor stories,[8] a live-action version of Stan Lee's The Incredible Hulk, film adaptations of stories that appeared in James Warren's comic magazines Creepy and Eerie,[7] and a co-production with former James Bond film producer Harry Saltzman on Saltzman's troubled[9] "shrunken man" epic The Micronauts.

United Artists agreed to bankroll the project – now called Thongor in the Valley of Demons – in 1978, but subsequently withdrew for unspecified reasons.

In 1980, they co-produced the TV series The Martian Chronicles, adapted from the short story collection by Ray Bradbury.

[12] Subotsky also co-produced several adaptations of Stephen King novels, including Cat's Eye (1985), Maximum Overdrive (1986), Sometimes They Come Back (a 1991 TV film) and The Lawnmower Man (1992).