Love DBZ, greatest anime ever.
I think a movie could work considering the type of technology these days. They can speed up the fighting scenes and also use that super fast movement where DBZ would dissapear after that sound you know what I mean.
And all the great special effects for the ki blasts and explosions and damage to the surroundings can easily be done as well. They also need good actors because the ones in this trailer can't act. And I agree with the other guy, the actors should up their steroid usage months beforehand.