This shot is of Ceradyne, Inc.’s Founder and CEO wearing an Audemars Piguet Royal Oak. That company provided the ceramic armour plates for the bat costume in The Dark Knight. Technically speaking it’s not from the movie and he’s not a celebrity, but it is from the movie’s bonus disc.
Watch: Audemars Piguet Royal Oak

Actor: Aaron Eckhart
Character: Harvey Dent/Two-Face
Watch: Omega Seamaster Planet Ocean 2500
Submitted by: Misplaced Brit

Actor: Heath Ledger
Character: The Joker
Watch: Casio CA-53W
Submitted by: Rasmus Berg
