Bob Clark's classic film A Christmas Story gets a 24-hour marathon on Christmas Day courtesy of one of the cable channels, but it's chopped up by commercials. Come see it unsullied by the crass commercialism of the season in a bar -- Jean Shepherd, whose book In God We Trust, All Others Pay Cash, is the inspiration for the film, would appreciate it. He was a guy who liked beer and salami in equal measure, and since he's the guy who's narrating the film, so why not order a beer while you're there and hoist it in his memory? Relive Ralphie's quest for a very specific model of BB gun, remember every great gift you ever received, and then spare a thought for all those kids anticipating Christmas morning right now. Culture Shock presents A Christmas Story tonight at 7 p.m. at Schlafly Bottleworks (7260 Southwest Boulevard, Maplewood; www.afilmseries.com). Tickets are $6.