Check out the first trailer for the live-action Patlabor movie. This beats Robocop anytime of the day. Based on the classic anime series by Mamoru Oshii (director of Ghost in the Shell), it is about the Tokyo Metropolitan Police Special Vehicle Section 2 - which handles Tokyo's giant robot related crimes.
The movie is directed by Oshii, and like the original Patlabor OVAs and TV series, it'll include giant robot action setpieces. Check it out below: