AFAIK, a zip line is kinda how Kevin got from the second story of his house to the treehouse. It's a line strung between two high places, and you hold onto a thingie that rolls along the line to get you from point A to point B. (Someone who's actually been on one, pls correct me as needed!)
*Cheers and applause*
I have that edition---they have some extras, including info about how they restored the film for the DVD. Sim brings a bit of humor to Scrooge. He's a riot at the end after his transformation!
[film historian] I think the "original" was made in about 1908, and there were several other versions made before the 1950 version starring Sim---so there are more versions out there you can add to your collection! I recommend the 1935 British version starring Sir Seymour Hicks. More ghostly, rather like Dickens wrote it. [/film historian]