Sigh. . . I was really into Dragon Ball Z about ten to five years ago (Yikes, time flies!) as I was going through the series. Now that I've completely watched it all, my interest has waned. That said. . .
I'd still totally love to see live action of it, but only so far as it kept true to the spirit of the series, and hollywood didn't butcher it too bad. (I'm not worried. It seems that hollywood is finally learning how to do Comic book/anime movies correctly. . .)
I know, I know. DBZ has it's share of stupidity and quirks, and I'm not going to waste my time defending them. Suffice to say, it's not for everyone, and as for myself, well, I'm cool enough to laugh at the dumb and enjoy it for what it is. A no-holds-barred, over-the-top, brawl.
If this were real (and those links would seem to indicate that it is, in fact, a false trailer), I'd love it for the same reason I liked all three Matrix movies. Good mix of effects to google and drool at, toss in far-reaching quest to save existence, and beat folks up. . .