It's the Great Pumpkin, Charlie Brown

The name of this movie is It's the Great Pumpkin, Charlie Brown released in 1966-10-27 and it's main theme is This classic Peanuts tale focuses on the thumb-sucking, blanket-holding Linus, and his touching faith in the Great Pumpkin. When Linus discovers that no one else believes in the creature, he sets out to prove that the Pumpkin's no myth—by spending the night alone in a pumpkin patch..