**½ Big Easy Express If the online homemade crafts site Etsy were a documentary about musicians, it’d probably be something like this. It’s the movie-watching equivalent of removing a screen-printed organic cotton cloth napkin from an antique hutch and using it as a kerchief. It sounds fun being trapped on a moving train with Mumford & Sons, Edward Sharpe and the Magnetic Zeros, and the Old Crow Medicine Show. But they’re better on stage. (66 min., unrated) (Wesley Morris)
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