Marcel the Shell's Alamo Drafthouse PSA gets sweet with its shushing

Marcel the Shell with Shoes On (voiced by Jenny Slate) is here to tell you not to talk or text when you go to a movie theater.As part of Alamo Drafthouse's latest moviegoing PSA, the sweet stop-motion shell asks audiences to please not talk while watching a movie. However, he says if someone forgets and starts talking, a "normal shushing is enough.""You don't have to make a meal out of it," Marcel points out. Plus, a normal shush gets bonus points for sounding like the ocean. You can't compete with that.Marcel the Shell with Shoes On is now open in select theaters; expands nationwide July 15.