More than any other film, this deserves a proper English language dvd release. It's heartbreaking that this film isn't more widely known and appreciated. I had a VHS copy when I was a kid and I watched it almost every day. It has a humour, depth and beauty that most films would kill for. Mesmerising stuff.
This has been released in U.S. as "The Curious Adventures of Mr. Wonderbird." I found a copy in a one dollar bin, and it's been one of my favorite animated films since the first watch. The animation is beautiful, the ideas and characters vividly realized. A nice balance of humor and pathos, romance and adventure.