Imran Khan and Sonakshi Sinha launched the Hindi trailer of the animated movie, "Rio 2". Sonakshi and Imran have lent their voices as macaws Jewel and Blu, for the Hindi version of the movie, releasing on April 11. They have also sung a few lines in the movie. Sonakshi also plans to treat kids of a NGO she supports with a special screening of the movie. "Rio 2", an adventure comedy set in the Brazilian city of Rio de Janeiro, is releasing in 3D here in English, Hindi, Tamil and Telugu April 11.