GRADE: B On the surface, Pitch Perfect looks like Glee: The Movie, or, more generically, another low-budget, low-IQ teenage-driven comedy most assuredly packed with booze, sex and enough innuendo and euphemisms its bloated PG-13 rating can hold. At least that’s what my mind first thought when I saw the synopsis and the poster (which, ironically, tends to look like the poster for 2011’s Bridesmaids). However, after watching the trailer, while still skeptical, I had high hopes. Maybe, just maybe, Pitch …