Boston is not Hollywood and will never be accused of being so. But we do provide shelter and occasional sustenance to filmmakers and actors, and we do shoot some movies on premises -- maybe we'll have more of this in the post-George Cashman era. Tonight, George -- An American Tavern begins a Monday-night series geared to the local film industry called Project Green Light Night (and no, it's not connected to the Matt Damon-Ben Affleck HBO-sponsored "Project Greenlight"). This is sponsored by Rock Green Light Beer, a new beverage that replaces Rolling Rock Light. (Claim to fame: lowest in carbs and calories! And Boston's the first of 40 markets in which it rolls out!) From 6 to 10 p.m., Dan McCarthy, whose "Irish Eyes" (starring a Baldwin brother and semi-based on the Bulger brothers) hits theaters Friday, and Angela Peri, owner of Boston Casting, will set up shop to talk about getting into the biz. Won't cost you a penny, but a bottle of Rock Green Light will run $3.95. 384 Boylston St., 617-859-7772.