I've been posting a lot about the upcoming Speed Racer movie, but so far it's mostly been casting news and not a lot of information on what the actual movie will look like.

Of course, we've been able to venture some guesses as to what we might expect, since the movie is being helmed by Matrix creators Larry and Andy Wachowski.

Matthew Fox of Lost has joined the cast of the upcoming Speed Racer movie as Racer X.

FOX joins previously cast Christina Ricci (Trixie); Emile Hirsch (Speed); and John Goodman and Susan Sarandon (Speed's parents). The new movie will be helmed by the Wachowski brothers (The Matrix), and will begin shooting this summer (while Lost is on break) for a May 2008 release.

I'll admit I don't pay as much attention to movie scuttlebutt as I do television, but based on the rumblings about this movie I've caught here and there, it sounds like it could be pretty cool: an amplified, effects-laden version of the '60s cartoon. I imagine that, not unlike the Matrix movies, it'll be something that needs to be seen on the bigscreen.

Much like the new Underdog movie, the Wachowski brothers' bigscreen adaptation of the popular Speed Racer cartoon will not be animated, but considering the Wachowskis were behind the Matrix trilogy, one assumes the new film will be both visually stunning and not especially "heavy" storywise. Of course, it's not as if the original cartoon was all that deep, either, so in many ways this is a good match. If they do it right, it could be the perfect no-brainer, popcorn matinee.