I'd liked "The Red Balloon" as a kid. While I was near Venice, I went to see another of his, "I Dream of Wild Horses".
When the horses first run, they're moving in a dreamscape slower motion. Then they begin to fight. And there was music. Then you realize they're in danger and running from a fire towards the ocean and there might be no escape for them.
("The Dream of Wild Horses" (1962) by Albert Lamorisse, who had previously made the children's favorite "The Red Balloon" (1956) was a lavishly photographed display of wild horses running through a fire set at the ocean's shore (Kodak was one of the film's corporate benefactors). The imagery was essentially a stylish, technically proficient skin, stretched over a framework of run-of-the-mill Late Romantic dream symbology.)