Rio 2: Thrilling, but too many bad guys

There's not much new but a lot that's vibrantly blue in Rio 2, the sequel to Fox's ultracolourful 3-D animated 2011 film, about a domestic macaw, Blu (voiced by Jesse Eisenberg) and his relationship with a Brazilian jungle bird, Jewel (Anne Hathaway). The new movie, which offers no backstory for the …