Spyderco Police, used in numerous movies, but esp. in The Client.
Chris Reeve Sebenza (was it a customized auto version?) in Collateral.
Medium stockman pocketknife in Let Me In.
Brian Lyttle lockback in The Edge.
The tanto knife wielded by Tatsuya Nakadai in the 1971 Yakuza movie, The Wolves.
What looks to be an older Kershaw linerlock model in Tokyo Rampage (a.k.a., Tokyo Psycho). Not the greatest movie, but the lead character has an odd obsession w/knives; only in his case, unlike a proper knifeknut, his isn't a healthy obsession. In one scene, he shows several different knife models.
Jim