I think the trailer should work there. But, it doesn't seem that good. The story doesn't follow the original plot very well and the characters don't look as they should, but I'm probably going to see it to see how bad they did.
The sad thing is that I will watch the movie, but I know I will cry afterwards. Or at least yell and scream and jump up and down about how the movie was horrible and there was no Kryllin.
What bothers me is that Goku is not even a kid. That's the whole point of it! His innocence is lost! Like when Bulma throws out the motorbike and Goku just looks at it and says "Cool."
Goku would never say that. And if he did, he wouldn't say it like the bike is some form of fascist symbol that he's indifferent to.