Planet 51 (2009, USA/GBR/SPA) C-91m. SCOPE ** D: Jorge Blanco, Javier Abad, Marcos Martínez. Starring (the voices of) Dwayne Johnson, jessica Biel, Justin Long, Gary Oldman, Seann William Scott, John Cleese. Planet 51 is inhabited by green noseless aliens who lead a life like Americans in the 1950s. Then a spaceship from Earth lands and alien-hysteria engulfs the planet. The astronaut on board befriends a teen, who helps him find his way back to his spaceship. Some funny characterizations in this animated feature, but plot is much too weak to hold your interest. Filled with gratuitous movie references from 2001 to WALL-E.