Revealing mistake: The front view of the pirates in the golf cart with Darcy and Tom does not show the driver turning the steering wheel at all, which would mean the road was straight, but the when the road becomes visible again, it is diagonally behind the golf cart. (00:36:45)
Revealing mistake: When Danny and the others are riding in the "RLC" truck to the bank, the sky is mostly a pale blue (almost white at times), but is suddenly a darker blue between two buildings. After returning to mostly pale blue, the sky turns into a much larger area that is a darker blue, then goes back to pale blue. Suggests filming on different days and/or use of CGI to fill in the sky but failing to use a consistent or similar color. (00:18:25 - 00:18:56)
Revealing mistake: When William and Jack open the door, enter the room, and walk past the helium-filled balloons (tied to a chair about 4' away), the balloons remain immobile. Due to how light helium balloons are, just opening the door or breathing nearby would be enough to cause the balloons to move somewhat - if they were actually there. (00:16:00)
Revealing mistake: The 50 dollar bills that appear in the opening credits all have the same serial number (and you can find online the texture they used with great ease, just like the one for the 20 dollar bills stack). (00:03:45)
Revealing mistake: When the boulder rolling down the hill hit the man, he "vanished" - he was not flung into the air and it did not look like he got run over by the boulder. [Poor/ineffective CGI]. (00:31:55)
Revealing mistake: The views to the right and left of the truck on the road did not flow in the manner expected if they were actually there (as opposed to using a green screen). Also, as soon as a "stop" sign could be seen to the right, the camera shifted to the driver, who kept driving as though the stop sign was not there. The structures to the right of the truck were blue but became white when the camera shifted to a front view (not using a green screen). (00:01:20)
Revealing mistake: The appearance of the buildings/scenery opposite of FBI Director Gabriel Robinson's office vary, indicating the occasional use of a "green screen." The angles are inconsistent (wider or in the opposite direction) and sometimes grass and/or trees can be seen where the avenue between the buildings should be visible. (00:10:05 - 00:10:38)