The Undercover Man-1949-Glenn Ford-Nina Foch

DUAL LANGUAGE!!

A superior crime thriller in the semi-documentary style beloved by Hollywood in the late '40s. With the Big Fellow clearly inspired by Capone (he's prosecuted for tax evasion when normal policing methods fail to nail him), and Glenn Ford's Federal Treasury agent wading through piles of paperwork (as well as resorting to the customary action-packed physical pursuit), it achieves an authenticity rare in the genre. Perhaps even more impressive is the acknowledgment that mob crime affects not only cops and criminals, but innocents too: witnesses are silenced, bystanders injured. And Lewis - one of the B movie greats - directs in admirably forthright, muscular fashion, making superb use of Burnett Guffey's gritty monochrome camerawork.
The Undercover Man isn't the best film noir ever done, or even one of the best movies made by Lewis, but as a meat-and-potatoes genre film, it's a great way to spend 90 minutes, and it's also a great showcase for Ford and the rest of the cast.