true on both accounts, but it still shows what can be done on a limited budget. it all depends on how resourceful the director is.
i don't buy that they're making the changes because some think that the ideas in the cartoons can't work in live action. if you look at the movies coming out today, most of the summer blockbusters have gone from the typical action flick based in the real world to sci fi, fantasy. there are so many movies that demonstrate how most of the elements of the cartoon can be kept in a live action movie that there really is no reason that they couldn't make a more faithful Dragon Ball movie other than lack of imagination and/or time restrictions. when you take into consideration that a movie like Hellboy 2, that has tons of odd looking characters that co-exist in a world that's supposed to be ours, is made with less than $100 mil...then looking at what's being done to the DB movie now just seems like we're only getting half of what we fell in love with.
imo, the reason they're making the changes is simply because they didn't have enough time to prepare. if they had known the CURRENT release date all along they could have had at least 3 months of pre-production, which would have given them more time to asses the situation and see how much they can get out of $100 mil instead of just being thrown into the situation and having to deal with what they've been handed. the changes aren't creative changes, they're limitation changes.