Plot hole: The past has changed, but Kyle Reese is evidently the same one who was sent to protect Sarah Connor. In "T1", he explains to her that the T-800 CSM-101s are new units, with real human tissue, difficult to recognize, and that he had to wait for the cyborg to approach her before he could identify it; this means that he had never seen a T-800 that looked like Arnie. In this film, however, as soon as he sees the T-800 "Pops", he shoots it and later claims to have never seen an "old" Terminator. (00:28:31 - 00:31:36)
Terminator Genisys (2015)
1 plot hole - chronological order
Directed by: Alan Taylor
Starring: Arnold Schwarzenegger, Jason Clarke, Jai Courtney, Emilia Clarke
Continuity mistake: In the bus scene on the Golden Gate bridge, right after the bus flips end-over-end, we see it sliding broadside from Pops' point of view through the hole in the police car windshield, at most a few hundred feet ahead. At this point, the bus falls over the side of the bridge, breaks apart, then catches and hangs there. In the ensuing wide angle shot, even though Pops was a mere block away and racing at top speed, his car is nowhere in sight. What's taking him so long? Did he take the scenic route? Perhaps stop for beverages? Meanwhile, as Kyle and Sara snap out of it, exchange some dialogue, and begin scrambling upward to safety with John Connor again in hot pursuit, a full minute passes before Pops finally rolls in to save the day. (01:28:35 - 01:29:15)
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Suggested correction: The police car he was driving was badly damaged when he literally fell onto it. It possibly slowed him down a bit.
This is a guess, not a correction. The car seems to work just fine even with the damage.
But when Arnie was exiting it, its left side was also damaged while its left front tyre was destroyed, to the point of causing sparks. It could have slowed him down.
John Connor: I'm not a man, not a machine... I'm more.
Trivia: The line "come with me if you wanna live" is said by Sarah Connor for the first time in the franchise.
Question: Why did the old T-800 prevent his younger self from killing three punks and stealing their clothes? I mean, these punks were meaningless to it, so why did it save them?
Answer: The T-800 "Pops" was working with Sarah Connor, and they were trying to eliminate any Terminator sent back in time. The punks were incidental and the aim was not necessarily to save them, but Sarah probably also wanted to minimise the collateral deaths as much as possible by destroying the machines as soon as they emerged.