Boy, could they make those glasses of Victor Sen Yung any thicker and play it up any heavier?? LOL OK, we get it!! Typical of the times though. But they did surprisingly show Japanese culture and the philosophy of judo in a sensitive light.
How many Japanese were in the film? They make ONE look like a stereotype and that one is too many? Additionally, wasn't he "in disguise" throughout the movie so he was SUPPOSED to be a stereotype? I'm not sure his character really needed those glasses or actually spoke in such an A-number-1 okey-dokey manner.
I care to disagree, the character was Joe, the 2nd generation Japanese-American. He was played as a real hip true American for the time. The thick glasses shtick was after the challenge to Rick to throw a punch at him and then Joe's display of his real training (and maybe foreshadowing his real allegiance) in the Japanese way.
Good movie, can't hold the Fx's lack of reality since it was made in 1942, holds up well for the most part for me, especially if you like Bogart, Greenstreet, and almost a film noir ! as The Maltese Falcon (1941), with Humphrey Bogart