Continuity mistake: Tom's jacket keeps reappearing constantly. He leaves it down in the tunnels in the beginning and is unable to go back and get it, yet after the lecture he gives it to Paul. Then when Paul and Tom are leaving the library Tom is magically wearing the jacket again.

Continuity mistake: Tom's jacket keeps reappearing constantly. He leaves it down in the tunnels in the beginning and is unable to go back and get it, yet after the lecture he gives it to Paul. Then when Paul and Tom are leaving the library Tom is magically wearing the jacket again.

More mistakes in The Rule of Four