Corrected entry: In the final battle, just as the car driven by Shane backs into the building and is beginning to be sucked up by the magnet, everyone jumps out of the car. Look closely, and you will see Tessa "jumps" out twice. The first time, she tumbles out and gives us a nice quick view of her top half, then we see her falling headfirst and doing a tuck and roll a split second later, displaying her bottom half for the camera.
Corrected entry: Cade, Shane and Bumblebee are in the room with the cars in the KSI building, and Bumblebee is stressing out. Joshua Joyce then appears with a tour group and confronts Cade and Shane to not make any mistakes, then leaves with the rest of the tour group. Bumblebee then, very loudly, transforms back into his Autobot self. There is no way Joyce could not have overheard this. He had only walked behind a small screen and was only a few meters away. Considering Joyce is power hungry and had just had a go at Cade and Shane for messing with the cars a few seconds ago, the most realistic thing for him to have done was go back and see what had happened if he had heard this.
Corrected entry: During the battle between Optimus Prime and Galvatron. Optimus Prime and Bumblebee go through an exploding semi-truck trailer (in slow motion). The interior of the trailer explodes but the entire truck doesn't. The gas tank is located below the trailer - the entire truck should have gone up as well.