Michael Cera is one of Hollywood's most famous on-screen geeks. But he is far from the only celeb happy to get their nerd on.
Best known for beating Apollo Creed to death in Rocky IV, in real life the towering Lundgren has an IQ of 160 and holds a masters in chemical engineering from Sweden's Royal Institute of Technology. He also speaks five languages.
A straight-A student through school, Natalie Portman missed the premiere of The Phantom Menace because she was studying for her final school exams. Her hard work paid off as she duly gained admission to Harvard. She wasn't a campus novelty – Portman (right) published two papers in top science journals and could have had a career in academia.
There are celebrity geeks and then there is Vin Diesel, who 'outed' himself as a life-long Dungeons and Dragons player several years ago. He is such a D&D die-hard that he wore his gaming character's name as a tattoo in the movie XXX. In case you were wondering, his character was a Drow witch hunter (if you need to ask, you're better off not knowing).
Best known as uber-smackable Star Trek teen Wesley Crusher, in later life Wheaton has reinvented himself as the world's foremost celebri-geek. He hosts his own online gaming show, Wil Wheaton's Table Top. When he featured a zombie game called Last Night On Earth in 2012, all copies of the title in Dublin immediately sold out.
A household name in America, Munn is the glamorous face of geek culture. She's a high score champion at Tetris, boasts of being able to take apart and rebuild a home computer and goes to fancy dress parties as Wonder Woman. She has also read Lord of the Rings more times than you.
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