Maura Axelrod’s new documentary gets its name from Italian artist Maurizio Cattelan’s first solo exhibition. The 1989 show consisted solely of a gallery with no art inside, just a sign on the locked door that said Be Right Back. (Well, technically it said Torno subito because it was Italy, but you get the idea.) Cattelan’s made quite a lucrative career out of jokey sculptures and performances designed to frustrate his fawning audiences. He’s long been rumored to be installing a 18K solid gold toilet at the Guggenheim, and his most recent piece involves hiring Paralympian Edith Wolf-Hunkeler to periodically wheel herself across the top of Lake Zurich. Sadly, this is the final film in this year’s NewportFILM series of outdoor documentary screenings.