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★ ★ ½ 2012 Sundance Shorts If collections of film shorts are like party mixes, this program has a few too many questionable wasabi peas. The longest — “Fishing Without Nets,” about Somali pirates, and “The Return,” a heart wrencher from Kosovo — are the best; the rest are interesting without being engaging. (95 min., unrated) (Ty Burr)