Are we so jaded as audience that we don't know when we see great character work.
Jake Gyllenhaal pulled off an English accent while doing an action adventure character. He held his own against a knight of the British empire, Alfred Molina and this guy who played the lead Hassasin (don't even want to try to spell his name.)
Somebody actually let these actors develop characters in a summer action adventure flick that we know is based on a animated movie. I thought the story was great, it had me guessing.
I appreciated the performances of all the actors, the brothers and the female lead. She wasn't the whiny/stupid female lead - as written - in the Mummy. For the record Rachel Weiss is a great actress she was given stupid lines in both self-referential and silly Mummy movies. Prince of Persia characters kept their dignity.
Remember Jake Gyllenhaal was in Donnie Darko, Brokeback Mountain and The Good Girl. Can't get more diverse than that in your work. And may I say he is really good-looking and buff in this movie while still a tender romantic lead.
I wonder if it isn't us who no longer see when something is more than what we expect. Don't blame the actor - let's take a step back and recognize what we are missing as audience.
I'm impressed Disney did this, tried a different approach to what could have been a disaster. They took something and delivered. I think people should try to enjoy this movie. It tackles a lot - special effects, animation to live action, American lead into action/adventure movie star role.
At least give it a try.

How many more movies will be made replacing people and histories with these boring white American actors and actresses.We want to see the world, NOT the gated side of Orange County, CA...

If you watch this movie in theaters you have either not played Prince of Persia before Warrior Within, have played them but are well-conditioned by the media to throw money at mediocre products (see Modern Warfare 2), or feel compelled to go out and spend over 10 dollars on a movie because it's a behavior that could be roughly described as normal.