The Land Before Time (1988, Don Bluth)

Look down. A great emerald leaf gleams on the ground. Your mother speaks from the dewdrops. An unlikely heaven, this uneaten tree star.

Look up. Her shadow steps across the rust-teared canyon wall. Trot after her on your little feet. Little foot after little foot. Lick the rockface.

Look closer. Her shadow was always, only your own.

Trailer: https://www.youtube.com/watch?v=Hmrx8luoec0