Terminator Genisys is slightly better than both Rise of the Machines and Terminator Salvation, but that doesn’t mean much. Since T2 the franchise-owners have tried to re-imagine and re-invent the series, but only the Sarah Connor Chronicles tv-series managed to do something interesting before it was aborted. The movie sequels never managed to leave the gravitational field of the original duology and either tried to repeat it (RotM) or spin it forward into the future (TS), with unsatisfying results.
TG doesn’t even try, as if they have completely given up on making the franchise relevant anymore. This is understandable, the originals managed to tap the double fears of atomic annihilation and killer AI, but both of those don’t rile people anymore, like they did when the originals arrived.
But instead of trying to find something relevant these days (and no, Skynet as an internet-controlling application doesn’t really scratch that same itch, RitM tried it with a faceless virus-incarnation of Skynet that came much closer), they go for more convoluted time travel and extravagant action that manages to entertain, but not to hide how hollow this movie feels.
Often it’s downright corny without being amusing. There’s no existential horror left anymore, just some robots beating each other up, until new, more “advanced” versions turn up and the game begins anew. And the actors really are no substitute for the originals, not even close. Arnold is fun, though.