The most "human" character in the movie is, in fact, the chimpanzee Ari, who believes all species were created equal, casts her lot with the outcast humans, and tells Leo, "you're sensitive--a welcome quality in a man." Helena Bonham Carter invests this character with warmth, personality and distinctive body language; she has a way of moving that kids itself.

There's also juice in a character named Limbo (Paul Giamatti), a scam artist who has a deal for everyone, and a lot of funny one-liners. That he sounds like a carnival pitch-man should not be held against him.

The major ape characters include the fearsome Gen. Thade (Tim Roth), his strong but occasionally thoughtful gorilla lieutenant Attar (Michael Clarke Duncan), and Sen. Sandar (David Warner), who is a parliamentary leader and Ari's father. There's also a cameo for Charlton Heston, as a wise old ape who inevitably introduces a gun into the plot and has a curmudgeonly exit line. Watching the apes is fun all during the movie, while watching the humans usually isn't; the movie works hard to bring the apes to life, but unwisely thinks the humans can take care of themselves.

It's interesting that several different simian species co-exist in the planet's ape society. It may be a little hard to account for that, given the logic of the movie, although I will say no more. One major change between this film and the earlier one is that everyone--apes and humans--speak English. The movie explains why the apes speak English, but fudges on how they learned to speak at all.

The movie is great-looking. Rick Baker's makeup is convincing even in the extreme closeups, and his apes sparkle with personality and presence. The sets and locations give us a proper sense of alien awe, and there's one neat long shot of the ape city-mountain that looks, when you squint a little, like Xanadu from "Citizen Kane." There are lines inviting laughs ("Extremism in the defense of apes is no vice") and others unwisely inviting groans ("If you show me the way out of here--I promise I'll show you something that will change your life forever"). And a priceless moment when Leo wants to stop the squabbling among his fugitive group of men and apes and barks: "Shut up! That goes for all species!" "Planet of the Apes" is the kind of movie that you enjoy at times, admire at times, even really like at times, but is it necessary? Given how famous and familiar Franklin J. Schaffner's 1968 film is, Tim Burton had some kind of an obligation to either top it, or sidestep it. Instead, he pays homage. He calls this version a "reimaging," and so it is, but a reinvention might have been better. Burton's work can show a wild and crazed imagination, but here he seems reined in. He's made a film that's respectful to the original, and respectable in itself, but that's not enough. Ten years from now, it will be the 1968 version that people are still renting.