Joining the ranks of animated movies later this year is Planet 51, Sony’s latest attempt to hit the lucrative children’s market. The film follows human astronaut Chuck Baker (voiced by The Rock), who lands on Planet 51 to find it’s already populated by a race of aliens who look like they’re licing in a stereotypical 1950s America. Chuck needs to get back to his orbitting spaceship or otherwise it’ll leace for Earth without his (a bit of a design flaw there, we feel), but an alien general doesn’t want him to leave, fearing a invasion by the humans. The trailer actually makes this look like it should be pretty good. It’s out in the US on Thanksgiving and in the UK on December 4th.