Aren't we a cocky mutherfucker. Toonami carried both, though oddly enough, they started with Z. Still, not terribly difficult for Americans to be familiar with the story. Just as any Manga or anime series, you have to see them all or you'll have no idea what's going on. Try watching Bleach if you've never seen it before.
The movie is going to have to take "liberties" with the story just to make it producible in a 2 hour format. They'll get my 7.50, been waiting for this one for a decade.
Fear/gripe: They'll make it a kids movie. The nice thing about Dragonball and Dragonball Z, it kind of aged with the audience. I'm worried that the movie will be aimed at little kids, ignoring the fact that all of the Dragonball fans are in their late 20s.
At least Roshi is still a lecher.