1.

The Bourne Identity guessed correctly by
2.

Blade Runner guessed correctly by
3.

L.A. Confidential guessed correctly by
4.

Chinatown guessed correctly by no one. That's director Roman Polanski in the middle as a thug who's after Jack Nicholson (on the left). It's a classic film folks! Rent it today!
5.

X2: X-Men United. Since this shot is virtually indistinguishable from one in X-Men, I accepted either as an answer. Guessed correctly by
6.

The Grifters. Guessed correctly by