Daijōbu, My Friend (1983)
Daijōbu, My Friend is a 1983 Japanese film starring Peter Fonda as a superhero called Gonzy Traumerai. The film, written and directed by Ryu Murakami, based on his own novel, is a parody of such films as Superman, E.T. the Extra-Terrestrial, and Attack of the Killer Tomatoes.
More at Wikipedia.