Without thinking hard, I have 5, and 2 are Bogey starring films. The 5 are in no particular order.
The Maltese Falcon
The Treasure Of The Sierra Madre
From Here To Eternity
Requim For A Heavyweight
The Taking Of Pelham 123 *
* 1974
The French Connection, and The Sting, could be in amongst the list if I thought harder.