[quote="Raykugen"]The failure of the first movie of Cooler is that, the difficult transformation without sense. I can say too, well, Gohan has the same hair that he had on namek saga. It could be a design failure perfectly. I don't understand why the people thinks that the failure is that the movie can't fit when there's so many another stuff. It could be a screenplay or a design failure, and fit in the original story.
And in the second movie the same, Gohan doesn't goes to SSJ because the same. And well, Trunks doesn't appears, But Ten Shin Han the same and Vegeta arrives too late... They could be doing their issues, or not xD[/quote]
In movie 5, if Goku had gone SSJ from the begining, Coola would be dead from the begining. That's why he didn't go from the begining, to make the movie big enough, more interesting and an put an actual fight. It doesn't necessary mean that Goku couldn't control SSJ, he just used it later. In movie 6 Gohan's problem wasn't only that he couldn't go SSJ, he was also in the wrong age, his age was before his entrance the Room of Spirit and Time, while it should be after his entrance, as Dende is the Kami.