Twentieth Century Fox/Blue Sky's Rio is a sweet and charming fish-out-of-water story, but the 3-D conversion does it no favours. 3.5/5

While 3-D has been heralded as the Great White Hype – whoops, Hope – for getting moviegoers back into theatres, the process does have a dark side... literally.

Twentieth Century Fox/Blue Sky's Rio, director Carlos Saldanha's love letter to his hometown, is an excellent argument why 3-D should not be applied to every animated film. The process not only highlights the movie's relatively low budget by exposing the animators' "cheats," but also darkens what should have been an eye-searingly bright palette of colours. It hurts an otherwise charming film filled with wonderful moments.