I gave it a C-
. . . I was feeling generous.
It was just bad, really really bad.
I wish they had done the black Green Lantern, not that it would have fixed the content much, but it might have been more enjoyable to watch.
It also doesn't help that my husband and I got into an argument on the way back from the theatre because he decided that Sinestro was like The Watchers from Marvel, in other words he mixed up universes . . . again.