Find the marvelous layout

Which film series is encrypted in the message below?

4 letters:

rdxedc - cftgyhn uytfcvbfgh cftgbhu

• @JLee thanks for the feedback, I added some more details Sep 12 at 10:54
• I believe there are other puzzles here that use the same kind of encoding, but I'm having difficulty finding them right now Sep 12 at 12:13