Visible crew/equipment: This flub is virtually impossible to catch by the human eye - use slow-mo. When Bond jumps off the dam, they do a shot, following him along his descent down the ledge of the wall. In a shot only visible during three or four frames, but they catch a shot of the ledge before panning down, in which you can see the film crew watching on top, together with a van or two... (00:01:50)
Plot hole: When Alec reveals himself to be Janus and that he was alive all that time Alec scolds Bond for re-setting the timer at three minutes instead of six. The problem is if Alec had realised Bond reset the timer on the explosive then he should have had plenty of time to leave the building after Bond escaped, so he shouldn't have been injured.