Assuming the $100 was deposited into your account in error, of course it is. My point is, you don't know.
A moral person would contact the bank to find out what's going on. An immoral person would adopt the attitude of "possession is 9/10th's of the law" and spend it.
But filming that would not attract many viewers.
Wrong analogy. This was not an error. These men KNOW they are committing a crime.
If you give someone a car and say “This car is stolen. If you drive it, you could be arrested”, that would be a closer analogy.