When the roster of superhero movies is closely examined, SOUPERMAN will certainly rank among the cheapest (alongside Alice Friedland's truly chintzy and oddly similar ADVENTURES OF FLASH BEAVER). That is, if you exclude Don Glut's amateur short films in the genre.
Marc Stevens stars in the title role, running around the streets of Manhattan in tights and bare-chested for a switch on the big S insignia iconic outfit. He doesn't fly, just runs like crazy. Lovely Susan McBain is the romantic lead Lois Lewd, working opposite Clark Bent at the magazine Daily Clit.
Minor story line (excuse for hanging sex scenes on) has evil Luther (Roger Caine) plotting to stop people from having sex, using a secret formula . He fails miserably (with Soup using aphrodisiac Crypton Crispy peanuts as a counter, and among the porn scenes is a fun seduction by McBain of Eric Edwards (in the Jimmy Olsen role) while she's wearing red panties made of licorice.
Other odd touches by director Fred J. Lincoln include playing the William Tell Overture whenever Soup does a fast change in a phone booth (The Lone Ranger should sue him) and porn's grand old man Jake Teague virtually unrecognizable wearing a bad rug in the Perry White role.
Dialog is semi-improvised in this harmless, throwaway trifle.