Factual error: When the gas is turned on for the box, the red handle was moved to a right angle to the pipe which is standard for the off position.
Continuity mistake: During the bike chase scene, Ethan chases the last rider who is trying to shoot IIsa. He follows a right bend to catch and get in the inside of this rider. Ethan then knocks him from the inside of the bend. As he is on the inside of the bend, he would be knocking the rider to the left. However, in the next shot Ethan has knocked him off on a straight road with the bike and biker now falling to the right, which would be impossible from the previous shot, with both rider and bike falling towards an embankment. In last segment the scene changes back to Ethan exiting the bend with the rider's bike travelling now in the opposite direction along the ground towards the edge of the road, before exploding when hitting the barrier. (01:16:00 - 01:17:00)
Deliberate mistake: If the files on the hard drive are encrypted, as stated, they would also be locked against being deleted by a command, and Atlee would not be able to use a phone in close proximity to issue the delete command. He would need a massively powerful magnet or EMP to clear the drive.
Factual error: Breaking through the power plant glass roof, the glass is wire reinforced and would not break in the way shown. (01:01:46)
Continuity mistake: In the Vienna subway, Benji tries the glasses on and a woman and an old man approach from behind. A shot later they're suddenly already several meters ahead.
Continuity mistake: When Benji receives the opera tickets he opens the brochure completely. When the shot changes the left page is not fully extended.
Continuity mistake: In the basement, the last guy Ilsa and Ethan knock down lies sideways. A shot later he is lying face down.
Factual error: They are meant to be taking off from Belarus in the opening scene. However when they fly over the roads the traffic is driving on the left hand side of the road.
Answer: This plan is not discussed because they may not have had the hacking skills to take control of the robotic arm. Regardless of whether or not they did, it would not have been the best idea as they are supposed to be infiltrating the facility in complete secrecy. The plan of Ethan holding his breath underwater and manually planting the cards into the system is a lengthier plan, but is less likely to result in them being caught.
Casual Person