After the feature films opening the New Orleans Film Fest, stick around for Nerdcore for Life, the chronicle of techie hip-hop. As one of them says, if you think it's hard out there for a pimp, try being a nerd. The film traces the movement from disparate basement PCs to actual real time, face-to-face musical shows. For a longer preview, go here. The official Web site (and of course its blog) are here. The film runs at 11:45 p.m. Friday at Canal Place Cinema. Nerd up.