Also, where was the statement that the movie was canon? I thought we just assumed that we can qualify it as that because Akira wrote it, whereas he didn't write GT. But if there's an actual official statement declaring the movie canon, that's going to cause quite a few... Interesting adjustments we're going to have to make to Dragon Ball canon. Which'll be fun.
Also, the statement was something along the lines of him being the 'strongest known being in the DBZ universe', iirc. Not just flat out. But I don't have the quote on me and don't really care to find it :P