When Ricky walks away to leave the loft after Michael solves his problem the yellow envelope full of cash is sitting on the counter next to Fiona. Fiona then grabs the incendiary rounds from her bag for Michael and the envelope is missing.
When Victor and Michael are breaking into the storage facility, Michael takes a shotgun out of the trunk of the car. He racks the slide twice, once as he removed it from the trunk and again before firing it. This would have ejected an unfired shell.
Michael climbs into the drop ceiling and supposedly moves around to another room where he says he can drop down and escape. Drop ceilings are supported by wires that will not support the weight of a man. In addition, there is no framework to move around on so Michael would have to crawl on the flimsy ceiling tiles which Will easily break under the weight.
Michael used the electron emitter part of the TV picture tube to supposedly produce x-rays. That part of the tube only emits electrons which are accelerated toward the screen where their energy produces a small amount of x-rays. Without the front of the tube and the high voltage the electrons will not go anywhere and no x-rays will be produced.