Theatre J takes on superheroes in general in its latest production, David Bar Katz’s “The History of Invulnerability.” More specifically, it takes on Superman and his creators, Jerry Siegel (David Deblinger) and artist Joe Shuster (David Raphaely).

Bar Katz’s play is at once very serious and very funny. He shows Jerry as a young boy (Noah Chiet) only briefly; then Siegel is a grown-up. As he sits in an armchair, Siegel imagines an extraordinary superbeing: an 8 feet high shadow appears, lit from behind, on a curtain near Siegel’s armchair. Then Superman (Tim Getman) steps out from behind the curtain, in full Superman regalia.