User blog comment:Mystery O/Lost Animated Movies without articles/@comment-7894279-20140809180157/@comment-33300401-20140809191900

I believe that Williams' version however was incompleted animation wise (most of what was shown was storyboards not full animation). Due to the fact that the full original version hasn't been released yet, wouldn't it still technically be considered lost? After all there are a few articles here (eg. Sesame Street episodes & The workprint of the Thoms the Tank engine movie) that talk about lost media that while still around, have not been released to the general public.