VIDEO : Reese Witherspoon and Scarlett Johansson Join an All-star Cast in New Movie

Reese Witherspoon and Scarlett Johansson have joined the cast of animated comedy Sing. The two actresses will voice characters in the new movie from Universal and Illumination Entertainment, joining Matthew McConaughey and Seth MacFarlane. Reese will play a frazzled mother of 25 piglets, who gave up her dreams of singing success when she was younger while Scarlett's punk-rock porcupine will have trouble with her boyfriend when she makes it through to the competition but he doesn't.
The film will feature more than 85 songs and the script has been written by Garth Jennings, who also directs.