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Tirelessly working on her new film “The Runaways,” Kristen Stewart was spotted on the Los Angeles afternoon (July 30).

The “New Moon” hottie, who plays rocker Joan Jett in the movie,” looked rough and tough in a black leather jacket with a white midriff-bearing shirt, black trousers and black Converse All-Stars.

In related news, it seems Miss Stewart made the mistake of drinking a Heineken beer during a recent wrap party, and the video has made its way onto the internet (and has since been removed). The 19-year-old wouldn’t have a problem if the party was in Canada, but unfortunately she was on US soil.

Gossip monger Perez Hilton commented, “It’s a good thing K-Stew is not a role model! She’s not, right??? P.S. Stewart also didn’t buckle up in the car after they drove off at the very end of the video.”