Warner Bros. has jut announced that their animated movie Happy Feet Two will be released on DVD and Blu-Ray on March 13th, DVD Active is reporting. The extras will, apparently, only be featured on the Blu-Ray, will include interviews, sing-alongs and more. Meanwhile, Universal has announced that their live-action/animated Easter comedy Hop will be released on Blu-Ray on March 23rd. Extras will include a number of featurettes. Although Hop was a box office hit, the same can’t be said for Happy Feet Two, which underwhelmed with a total gross of just $60 million against of a production budget of $140 million.