[6] Terminator: Salvation is passable summer entertainment held together by a sliver of thematic sci-fi integrity and a strong supporting performance by Sam Worthington (Avatar). Why Christian Bale opted into this movie is beyond me — it’s a thankless role. He’s easily outshined by Worthington, whose character carries all the dramatic weight of the story. Anton Yelchin, as a young Kyle Reese (Michael Biehn’s character …