When Dirk takes the check from Vince, he crumples it into a ball. When he later shows it to Mason, it is neatly folded in quarters.
When Morado is on the witness stand, he is leaning back and to his right in front shots but back and to his left in back shots.
In the scene where Perry and Paul row away from the boat where Button is, it can be seen that a stand-in has taken the place of Raymond Burr, and that the stand-in's build is quite a bit lighter than Burr's.