I'm pretty sure most of the audience won't notice, and if they do, they won't care. Heck, I've seen T1 just before Genesys, as part of a mini marathon my regular movie theatre was offering, and I didn't notice... But then again, I'm not particularly fan of the Terminator franchise, I like them for what they are, action/sci-fi movies with Schwarzenegger. And the last one was OK, had much more of a Terminator vibe than the last one with Bale for sure. And I thought the beginning mimicking the first movie was pretty well done, as most of the people in the room from what I could overhear at the end of the movie.