sci-fi movie mistakesEverett

While cool tech, mind-boggling theories, future worlds, and alternate universes are all sights to behold on the big screen, the spectacle doesn't make our favorite sci-fi movies immune from a few "uh oh" moments here and there.

From eyebrow-raising "Back to the Future" date mix-ups to mysteriously changing watch faces in "Minority Report," here are a few movie mistakes from some sci-fi classics.

As always, photos are courtesy of MovieMistakes.com.

Ender's Game- Trailer No.2