Plot hole: In the end of the movie, when Willy Wonka decides to visit his father, his father does not recognize him until he looks at his "rare teeth." But the wall of newspaper printings that Charlie was looking at included a recent enough picture of Willy that the father would have definitely recognized him, before seeing his teeth, as Willy doesn't look like a normal person with that outfit.
Plot hole: After the bird is hurt, Jimmy is shot several times and wounded very badly. Yet just seconds later, he is able to save the young boy, and mysteriously use many of his "crow powers" despite being hurt very badly.
Plot hole: Travis does the last time jump to change the events of a previous time jump. As all the jumps were to the exact same time to kill the same dinosaur, the travelers of the second jump must have found there the travelers of the first one. The travelers of the third jump must have found the travelers of the second and the first, and so on.