Masters of the Universe

With the help of ominous music and a Cosmic Key that opens portals to other places, the evil Skeletor has finally conquered Castle Greyskull, giving Skeletor the power needed to become the Master of the Universe himself. Fortunately, He-Man and his warriors have a copy of the Key and can save the universe! Unless they misplace it and two current-day Earth teens stumble upon it.

I watched the movie through to the end(!), but spotted only one explicit small item to indicate that the Key might transport through time as well as space: When Skeletor’s minionette locates the copy of the Key, she says that they can find it within a “parsec-eon,” which kind of sounds like a space-time measurement. In addition, those who know the He-Man franchise tell me that he is a far-future descendant of Earth humans on the planet of Eternia, which means that the trip back to current-day Earth was through time. So it is a time-travel movie(!) but that fact has no bearing on the movie’s plot.