So basically this film is not only a live adaptation of Dragonball, it's also completely not.
If it's just a completely different concept altogether with a famous name slapped on top of it, where is Will Smith in all of this? He's a master of starring in films which bear almost no relation to the source material.
But seriously, Hollywood does this too much. Whether it's I Am Legend or Transformers, there is always this one absolute retard who says "HEY GUYS WE NEED TO CHANGE THIS" and lo and behold, in an attempt to appeal to eveyone, you end up creating something depressingly dissapointing and pissing off a fuckton of people at the same time.