The Dark Knight

Harvey Dent kidnaps one of the Joker's stooges to interrogate him while he was being treated in an ambulance.  The ambulance has the keys in the ignition with keychain attached.  The keychain is a green fob with a logo or writing on it, but it is impossible to tell what that is.

Mission: Impossible - Fallout

From Mission: Impossible - Fallout

Ethan Hunt, Tom Cruise, is trying to keep a terrorist from escaping custody.  His getaway car has what appears to be just a plain blank keychain.  Disappointing.