Big fan of Dick Powell so I know the movie well (a 6 foot poster of it hangs in my hallway) Ugh, how many collections went up in smoke like that? Anyway, the identifiable top issue is Flash Comics No. 77 (Nov 1946). Obviously they filmed stuff ahead.
Lately I have been going through a number of photos and article about the Senate hearings on comic books. Some of the photos were of the comic book burnings. Sigh... All those cool, vintage comics lost to hysteria and a society looking for a scapegoat for its own failure at responsibilities.