As far as showbiz mentors go, independent-filmmaker-turned-HBO-darling Lena Dunham could do a lot worse than Judd Apatow. Apatow, the writer-director-producer variously responsible in one capacity or another for The 40 Year Old Virgin, Knocked Up, Superbad, Forgetting Sarah Marshall and Pineapple Express, is prolific, but with so many box-office smashes under his belt, he’s also […]