A central drawback with time journey to the past is the violation of causality; should an effect precede its cause, it could give rise to the opportunity of temporal paradox. Some interpretations of time journey resolve this by accepting the possibility of travel between parallel realities or universes.

The Next Generation’s big display screen outings are a blended bag, to put it properly, however the best movie by far is the time-bending Star Trek: First Contact Jean-Luc Picard and the crew of the USS Enterprise-E travel to the previous to prevent the cybernetic Borg from mucking with Earth’s history. It’s a good film all by itself, but much more glorious for those who’re an invested Star Trek fan. We get to see enormous, never-before-seen moments within the Star Trek universe, like humanity’s first encounter with the Vulcans, and the Borg are simply an excellent adversary.

The Terminator and Terminator 2: …