'Terminator 5' Plot Details, Rumors - Watch 'Genisys' Movie Trailer Starring Arnold Schwarzenegger: "Everything's Changed" In First Official Footage Of 2015 Film

The first trailer for director Alan Taylor's Terminator : Genisys has officially debuted this week, and it is full of great plot details and spoilers that should clear up any speculation and rumors we've heard in the past. Arnold Schwarzenegger returns to reprise his Judgment Day role with Emilia Clarke, Jai Courtney and Jason Clarke joining the franchise for one of the more original takes on a movie reboot. "Everything's Changed" is quite possibly the best tagline for this 2015 movie.

Check out more movie news here!

Just as we thought, the timelines and stories of the other Terminator films are being rewritten, with Sarah Connor not needing saving from the first robot sent back into the future. It might seem a little confusing, but the fact that a T-1000 is involved is surely enough to check out this blockbuster.

Slash Film points out that this timeline will be different, but still seem similar enough in a film that gets the chance to retell this story from another point of view. Check out a great new movie poster as well:

Check out more Sci-Fi news here!

Watch the first trailer for Terminator: Genisys right here to get a great glimpse of one of the biggest movies of 2015:

What did you think of this first trailer? Could you follow along with the story? Let us know in the comments section below!

One question still remains: Who is Matt Smith playing? We previously learned that he was some sort of android-hybrid that is fighting alongside John Connor, but why isn't he featured in the first trailer?