Been to see Jumper earlier. I'd say it's worth a 6 out of 10.
Everything in it is good (especially Rachel Bilson

) apart from a couple of things. 1 minor, 1 not so minor.
The minor point is the fights get confusing, with the characters "jumping" all over the screen (and in one fight, apparently randomly to/from any one of three continents). This makes the fights a little difficult (but certainly not impossible) to follow.
The more major point, for me, is Haydn Christenson. I thought he had pretty much proved he can't act in Star Wars.. The director of this apparently thought he could. With a better lead actor, I'd be tempted to say this film was worth an 8.