Hero at Large (1980)

An idealistic but struggling actor finds his life unexpectedly complicated when he stops a robbery while wearing the costume of Captain Avenger... (imdb)
Cast and Information
Directed By: Martin Davidson
Written By: AJ Carothers
Starring: Kevin Bacon, Kevin McCarthy, John Ritter, Anne Archer, Kenneth Tobey, Allan Rich, Bert Convy, Harry Bellaver, Anita Dangler, Joyce Brothers
Country: USA