Miller's Crossing - Bomb 20

Just watched the Coen Brothers' film Miller's Crossing. Just in-case anyone has seen it was wondering where they've heard the piece of dialogue "Something I try to teach all my boys" before, it's sampled (complete with the deranged screaming) in the Bomb 20 track "One in the brain" from the "Field Manual" album, now I just need to watch enough movies to find out where the sample at the end comes from. I guess it makes sense since Tom is told to put "one in the brain" when he is sent to kill Bernie.

I don't actually think many people will be familiar with the track and happen to watch the movie, but you never know.