[Source] NPR

A Preview of Sylvester and Tweety 3D Short “I Tawt I Taw a Puddy Tat” released in Theaters with Happy Feet Two on November 18th.
The film, which is rendered in CG and Stereoscopic 3D, finds Tweety and Sylvester continuing their timeless game of cat and bird as Granny naps through their chase. This particular short features the return of legendary Voice Actor Mel Blanc, with a song he recorded in character before he passed away.