A koala named Buster recruits his best friend to help him drum up business for his theater by hosting a singing competition. Sing 6.3 Audience rating 4 votes Your rating (out of 10) Save ratingNo account needed. We remember your vote in this browser using a cookie. Genre:Animation, Comedy, Family, MusicCast:John C. Reilly, Matthew McConaughey, Nick Offerman, Peter Serafinowicz, Reese Witherspoon, Scarlett Johansson, Seth MacFarlane, Taron Egerton, Tori KellyDirector:Garth Jennings In Theaters (AU): Monday, 26th December 2016 In Theaters (USA): Thursday, 8th December 2016 Share: