In preparing "Hugo," Scorsese showed his crew some of the earliest successful examples of 3-D films, such as "House of Wax" and Alfred Hitchcock's "Dial M for Murder." "I've always been an advocate of 3-D," he said, "except in the old days sometimes, the machines would go out of sync. And that you don't want to be around!"
Scorsese's fascination with 3-D also goes back to the ViewMaster toy stereo slide viewers: "You see this disk and these beautiful little slides, and then you put them into this little device. It's a square frame, pretty much 1:33, and it's stereoscopic. Because of the darkness around it, as a child - I'm trying to remember what the feeling was as a child - but it took you to another space and time. The depth of it was so strong and the colors were so vivid, it was a place that you could only get to in your imagination, I guess like 'Alice in Wonderland' to a certain extent."