Here's the extras:
- Shadows of Suspense
- Audio Commentary from Film Historian Richard Schickel
- Audio Commentary with Film Historian / Screenwriter Lem Dobbs and Film Historian Nick Redman
- Double Indemnity TV Movie (1973, 75 mins.) - Ugh, I can probably live without
While I'm on the topic, I recommend another Fred drama for your viewing pleasure, Above Suspicion (which I don't believe is on DVD yet). It's on TCM here & there - check it out.