Some people might not have known that when old Disney films were made, the animators would use real-life actors to act out scenes to create the cartoon characters more realistically.
The vintage Disney images are from Tumblr blog 'Technicolor Disney.' Each image helps recall those iconic scenes from Disney films of the past. In the image of Snow White, it shows the scene where she dances along with a couple of the dwarves, which raises the question of whether or not the animators of Disney used real dwarves to enact this scene in real life, or just a regular joe -- that's something only the animators would know.
The images showcase an interesting facet of Disney that's not often explored.