raywest

Answer: As Riff succinctly put it the rumble challenge is for, "All out, once and for all." After Riff and Bernardo have already agreed to the terms and shook hands, that's when Schrank shows up. So when Schrank makes the comment about a "stinkin' pigsty" and Bernardo angrily jumps up, Riff and Ice help restrain Bernardo and his temper in order to benefit their own interests. Riff would not outwardly show that he is enjoying anything that Schrank is saying. Riff's motivation is to eliminate the Sharks from their turf permanently, and he believes the next day's rumble will accomplish this, so they cannot have Bernardo get into it with Schrank (who is shown to make nasty disparaging comments to members of both gangs). Note that before Bernardo leaves he straightens his jacket, and turns around to face Riff, who subtly nods to him.

Super Grover ★

Answer: You might be overthinking it a bit. It appears to me most of the actors are overacting at being intense.

raywest ★

Answer: Some of Tamblyn's vocals were dubbed by actor/singer/dance Tucker Smith, who was also in the original Broadway production of West Side Story. Smith also appeared in the movie version, playing a character named Ice.

raywest ★

Answer: James Howard Bryant dubbed Tony in the 1961 movie. Bryant said in an interview that Richard Beymer (Tony) always gave him accurate credit, because he was such a nice guy. George Chakiris (Bernardo) was the only one of the main characters (Tony, Maria, Anita, Bernardo, and Riff) whose voice was not dubbed. This was because Nardo didn't have many singing lines, except in the song America.