When Rainbow Brite first runs into Orin, he is climbing a stalagmite. His cane and bag of star sprinkles are shown on the ground. When he runs to retrieve them, he is seen holding his cane briefly before he actually gets it.
The direction of the colors of the rainbow is reversed from shot-to-shot in some scenes - i.e. when Rainbow Brite and Starlight first leave Rainbow Land, the rainbow is red-orange-yellow-green-blue; on the reverse shot, it's blue-green-yellow-orange-red.