Worked briefly as an actor then stage manager

Became producer of Mineola Theatre, Long Island, NY and other theater companies nationwide; brought several productions to Broadway

Formed Sean S. Cunningham Films, Ltd.

Produced commercials, industrial films and documentaries

Debut as feature film director and co-producer (with Roger Murphy), "Together/Sensual Paradise" (pseudo-documentary porn film on which Wes Craven served as assistant producer)

Formed Cunningham Productions, specializing in horror films

Formed Sun Valley Film Corp., to handle more mainstream features