Lem ... played by Justin Long.
Dwayne Johnson does Captain Charles T. Baker voice in Planet 51.
The main character is the alien boy Lem. He aids the other important character Chuck, who is the astronaut from Earth.
Alan Marriott
Jessica Biel
Personally , I prefer "Planet 51" because of the voice casting and direction .
'Planet 51' is 91 minutes .
Planet 51 was released on 11/20/2009.
The Production Budget for Planet 51 was $60,000,000.
Planet 51 came to theatres on November 20,2009.
Planet 51 grossed $108,996,113 worldwide.
Planet 51 grossed $42,194,060 in the domestic market.