Plot hole: When Karate Kid accidentally frees Lex Luthor from the ice in the future, Lex just hops up with no problem and starts walking around perfectly fine after being frozen solid for 1000 years. Yet when they go back in time and then later free him from the same ice in the past, Dawnstar has to revive him so he can get up, and even after being revived, he is weak. Yet in the future, he came out of the ice perfectly fine and stole the Time Keeper. (00:11:10 - 00:37:20)
Plot hole: After everyone flees the family home, as Optimus is escaping he is pursued by a helicopter. He is driving down a road in a straight line. He never deviates. Yet the helicopter misses him every time, only narrowly hitting him on the side.
Plot hole: At one point it is mentioned that they have tried everything to escape the maze, and that it is impossible to climb up because the ivy doesn't grow all the way to the top of the wall. Yet in the aerial shots the ivy is shown reaching the top of the walls.
