The Man Who Fell to Earth (1976) may be our favorite Nicholas Roeg film, though the bar has been set pretty dang low. Even without David Bowie's performance -- and is he playing any more of a character than "David Bowie" ever was? -- this film deserves its cult status. Still as science fiction it fails for us on two major points:

Of course those are themes that show up a lot in science fiction, so I'll allow that Roeg may have been avoiding a cliche. But that doesn't forgive point one, which is a failure of imagination in production design (though it is probably the only aspect of this film that fails to be imaginative enough).