"On The Waterfront" with Marlon Brando. Steiger's great scene with Brando in the taxi. The "I could've been a contender speech" was one of the best scenes in that movie.
Regardless of his politics and the fact that he was an all around strange bird, Rod Steiger was an
excellent character actor.
I liked him in In the Heat of the Night, On the Waterfront, and I especially liked him as Pontius Pilate in Jesus of Nazareth: "Take him away, take him away, have him flogged as a token of Roman justice!"