Not a talking head movie, but a singing nut movie. Witty, clever, and enlightening, The Luckiest Nut in the World whisks the viewer around the earth as its animated, puppeteered and stock footage musical globalization primer touches on Senegalese ground nuts, Mozambique cashews, Bolivian Brazil nuts and American peanuts. Guess who’s the lucky one? Everyone will leave the theater humming.  LB