Lights, Camera, Action!: A Movie Adventure

S12, E5: Melanie comes up with the perfect idea to get people to donate to Grace's food drive - put on a movie premiere in the caboose! Barney and friends pitch in to help, but they all have different ideas about what kind of movie to make. Everything they try falls apart. It's curtains for Melanie's movie until she comes up with a blockbuster idea of her own.