Other mistake: The shot before Dredd tells Anderson the terms of the assessment is flipped: you can tell because the judges walking in the corridor have their badges pinned to the right side: with every other judge in every scene of the movie, it's on the left side. (00:10:25)
Other mistake: When the narrator holds up the wind speed gauge at the water's edge, strong whitecaps should have been visible to match the 22MPH indicated.
Other mistake: When Curt crashes into the force field when he is trying to jump the gap on his dirt bike, his point of impact is ridiculously high up. (00:59:40)
Other mistake: After the daughter visited with her mother for the first time, she is reviewing the footage with the priests. No such camera angles were taken for what they reviewed, only an overhead room camera would have been available.
Other mistake: When Nick Cassidy climbs onto the roof, he somehow injures his leg, but moments later, he's running at full speed. (01:24:00)
Other mistake: Throughout the saga, blood has been shown as essential for vampire's healing factor, and Selene herself used her blood to heal people. Somehow, this time around neither her or her pal David think in any way of this basic fact, making a complicated trip to the vampire doctor necessary, who simply feeds the vampire kid some blood, the very first thing any vampire would do to regain strength.