Happiness Is a Warm Blanket, Charlie Brown Happiness in feeling secure Linus is pushed to his limits when he learns Grandma is coming to visit and plans on ridding him of his childish security blanket. Details Casts Videos Galleries Posters Title Happiness Is a Warm Blanket, Charlie Brown Release Date 2011-03-29 Runtime 00 Hours 46 Minutes Genres Animation Comedy Family Production Companies Wildbrain Entertainment, Charles M. Schulz Creative Associates, Warner Premiere Production Countries United States of America Grace Rolek... Lucy van Pelt (voice)... Ciara Bravo... Patty (voice)... Amanda Pace... Sally Brown (voice)... Blesst Bowden... Violet (voice)... Andrew Beall... Snoopy (voice)... Andy Pessoa... Shermy (voice)... Trenton Rogers... Charlie Brown / Schroeder... Austin Lux... Linus van Pelt (voice)... Shane Baumel... Pig Pen (voice)... "Happiness Is a Warm Blanket, Charlie Brown" (Official Trailer) (Trailer) Original Size (1920x1080) Original Size (1920x1080) Original Size (3840x2160) Original Size (2740x1542) Original Size (500x750) Original Size (1000x1500) Original Size (960x1440) Original Size (1000x1500) Original Size (1280x1815)