Angel's position in the old photograph is different in the close-up shot from how it appears in the shot showing the whole photograph.
When Angel hides the bag of money up on the shelf in the basement, he is not wearing glasses. However, in the close up shot of his arms and the bag, he is.
A flashback to 1952 shows a woman who embezzled $11,000. When the money is shown, it is in the new $20 bills that weren't issued until 1996.
In the brief flash edit that shows the salesman after his suicide, a single frame shows two crew members.
(at around 38 mins) There is a man in the left corner, behind the counter.
At approx 42:41, Angel has a reflection in the window as he is walking down the stairs.