Based on a book I haven't read, Jumper follows David Rice (Hayden Christensen, of Star Wars fame) who discovers he has the power to jump (teleport) into different areas of the globe whenever he wants to or whenever he is in danger. The only problem is that he is not alone and there is a mysterious group of people led by Samuel L. Jackson (in a judge's wig!) who is out to stop him.
While the film has a very interesting premise and takes the sci-fi/superpower approach differently - for example; David chooses to use his powers to rob a bank rather than save a cat from a tree - the film also has elements that have been done a thousand times before, like the whole dysfunctional family affair and the high school crush theme. Despite changing the superhero type edge to a film where the main character has powers, Jumper is very boring as the same thing appears to happen over and over again. Main plot strands are not fully explored, like why David constantly teleports back the library, or why the people who are after him are after him and Jamie Bell's role is rather pointless as he doesn't appear for very long. Samuel L. Jackson is also wasted in his role - I don't know what his agent was thinking when he gave him this?! - and Rachel Bilson's character falls too easily in place with Christensen's.
On the whole; even with some great special effects, a different angle on the superhero theme and a decent enough cast, Jumper is utter rubbish that never fully answers the questions it sets up and never reaches a fully satisfying climax. It is possible that these plot strands are being set up for a potential sequel, but I for one am hoping that this does not happen as this is bad. My advice to you is to avoid this film at all costs and if you see it on TV or a friend puts it on, jump out of your seat and go and do something else. Trust me; that will be more satisfying!