This movie started out awesome. It was in the future post Judgement Day, the robot stuff was cool, it was when the first terminator and Reese travelled back in time and they actually recreated the same scenes from the first one. But then it fell off the rails. Sarah Conner was there waiting for Reese. Huh? And an older version of the original terminator was there waiting for the other one. Huh? Wait, that terminator was there because one was sent back in time during Sarah's childhood to protect her (shown via flashback) and has been with her all along and she calls him Pops. WHAT THE F . . . .!?!?!?! Then they spent a ton of time talking about how time travel effected all of this. Any time that you have to explain your story so much via dialogue you have failed. This is supposed to be a Terminator movie not a lame ass version of Interstellar. The acting from everyone was so atrocious that it made Arnold Oscar worthy but the running joke was that he was too old. Again . . . . WHAT!?! And I'm not even going to touch on their big twist and how simply the nonsensical thing could be prevented.
I would not recommend anyone bothering with this. Unless you want to angrily rant about it like me. It's a waste of time and a huge disappointment.