Oh jeez. BITD what didn't I borrow to all out steal from other media to use in my D&D campaigns.
He-Man/Superfriends/GI Joe/pretty much any cartoons, "the Barbarians" (Conan and Thundarr, respectively) , comic books (mostly X-Men), world mythologies, movies (particular scenes, character concepts, and/or plot devices from Flash Gordon, Time Bandits, and Legend immediately come to mind), ancient-to-romantic-to-modern literature,... you name it, I could glean anything from general (or specific) inspirations to all out full content plagiarism (with names and places changed to protect the innocent, i.e. me).
In other words, "Ch'yeah. Of course!"