Simplify the following text for a Grade 8 native English-speaking person.
Original: Eisenberg is known for playing the roles of Walt Berkman in The Squid and the Whale , James Brennan in Adventureland , `` Columbus '' in Zombieland and Mark Zuckerberg in The Social Network .
Simplified: He has played featured or starring roles in films including The Squid and the Whale , Adventureland and Zombieland .