Noir films online, the Public Domain Review.

Sterling Hayden in
Suddenly (1954)

The Public Domain Review features the following films that include some noir:

• Five Minutes to Live (1961): Johnny Cash is involved in a bank job; also features Ron Howard, Merle Travis, and Vic Tayback.

• The Lodger (1927). Early film by Alfred Hitchcock of Marie Belloc Lowndes's work about a suspected Jack the Ripper.

• Quicksand (1950): Mickey Rooney and Peter Lorre in a tale of theft that goes sour.

• Scarlet Street (1945): In this Fritz Lang film, con artists Joan Bennett and Dan Duryea set their sights on cashier Edward G. Robinson.

• Suddenly (1954): Frank Sinatra, hired to assassinate the president, takes a family hostage. Also stars Sterling Hayden as a sheriff.

(Hat tip to PhiloBiblos)