The Killers, Criss-Cross, Born to Kill, Gun Crazy, The Narrow Margin, The Big Clock, Out of the Past, Angel Face, High Sierra, The Maltese Falcon, Double Indemnity. That's a dozen off the top of my head.

The Killers is my desert island film noir. I watch it every time I can, sometimes for only 10 or 15 minutes if that's all I can stay for.