I don't know how unknown it is but Miller's Crossing is one of the greatest gangster movies ever, as well as the Coen bros best IMO.
Thief (James Caan, directed by Michael Mann) and State of Grace (amazing performance by Gary Oldman) are also fantastic crime/gangster movies.
A team of international astronauts is sent on a dangerous mission to reignite the dying Sun with a nuclear fission bomb in 2057.
I could never get into millers crossing. Has the one iconic scene in the woods but idk just one of those movies you'll either like or won't.Watching thief now
I heard milers crossing was good