All this talk of walls reminds me of Lazar (Gavrilo Gnatovich, 1987), an animated short about a mad escape from a walled-in city. I saw it in the theater in the 80's when it toured in an animation festival.
It took me a long time to find it on the internet. I couldn't remember the title. All I could remember was the ending; a great ending that stuck in my memory for years. Thankfully, Gnatovich posted it online or it would still be bugging me.
Another strange short with an odd title is Gisele Kerozene (Jan Kounen, 1990). The fun thing about this one is how it was done. These kids figured it out.
