"Quick Millions" is a shadow of better gangster films made the same year (Public Enemy and Little Caesar) but for all its awkwardness it grows with the viewing and is better the second time around.
Aesthetically, it is not an important film and explores only familiar territory. Still, there are unexpected delicious moments. The studio seemed to be trying to make Spencer Tracy into James Cagney with this turn as a racketeer trying to class himself up.
In film history, "Quick Millions" is important. It was Tracy's first starring role, and he needed it badly. It's not a common character for him and yet his skills at underplaying are clear and marvelous. For George Raft, who looks totally GQ in his every scene, this film was the direct reason he landed a similar henchman role in the terrific "Scarface," which proved to be his breakthrough. It also got him his contract with Paramount. Despite a rough beginning, Tracy and Raft became good friends while filming "Quick Millions." It's an interesting aspect, almost an unconscious battle of screen chemistry. Just try to keep your eyes off Raft doing absolutely nothing in the background except shifting his weight while you're supposed to be paying attention to Tracy's important dialogue with other characters.
What works: Great lighting direction during the holdup at the "testimonial dinner." Focus on Raft's legs while dancing at a party, which initially seems to be just showing off his deft moves but in fact is leading up to the next time we see his legs in a brilliantly shot murder scene. Surprising musical interludes. Tracy incorrigible and so believable in carrying the film.
What does not work: Ham-fisted camera work - even in '31 cinematography was advanced beyond this clumsiness. Long-winded anti-racketeering speeches. While dialogue is often sharp, the storytelling leaves gaps.
And watch out for a flip of the bird.