For the first time ever, summer box office receipts cross $4 billion with Superbad staying on top, a teen geek comedy raking in $18 million for the week. No bad for a movie with no big stars and a budget of $20 million.

Chances are you won’t even know any of the stars in Superbad, here are some of them:

Christopher Mintz-plasse, Jonah Hill and Michael Cera of Superbad

Emma Stone (left) & Martha Macissac (right) of Superbad

Bourne Ultimatum continued its charge, earning $12.3 million. The film is only $15 million away from crossing the $200 million mark. And surprisingly, Rush Hour 3 is holding steady. The film grossed an estimated $11.5 million, crossing $100 million despite terrible reviews.

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