One of the recurring scenes in this movie is a math test. Unfortunately, not much of the
test, nor much of the board behind the teacher is visible. Still, the 2 seconds are
enough to warrant having the movie in the math for movies collections.
It is one of these movies which messes with time. I personally can really only enjoy
them if they come with a decent amount of humor like "Groundhogday", "Palmsprings"
or the classic "Back to the future" in which the non-sense is washed away with fun.
explains a bit the movie.