Congrats, “Superbad,” you’re now 10 years old. So much has changed in the last decade. For one thing, “Superbad” probably couldn’t be made as is. Today you wouldn’t see a movie where two high school horndogs (Jonah Hill and Michael Cera) freak out over menstrual blood, or where the girls are only there to extract their virginity. That being said, “Superbad” only pretends to be a dumb, throwback sex comedy. It knows the boys are single-minded droogs, and it knows their prey (including Emma Stone, in her big screen debut) are smarter than they assume. It’s still a film for man-children made by man-children, but those man-children clearly want to grow up, become wiser, learn to include different kinds of people in their idiot-bro digs. Sure enough, five years later producer Judd Apatow introduced HBO subscribers to Lena Dunham.