Did you ever see the 1982 Disney science fiction movie "Tron"? I remember seeing it in the theater back then and not being too impressed. The combination of live action and animation may have been a little too ambitious for that era. Nonetheless, perhaps because of its "computer" themes, which were significantly ahead of their time, the film has since become a cult classic, and is shown on televsion all the time.
While it was at best mildly succesful at the box office back in 1982, for years there have been rumors that Disney was preparing a sequel. Three minutes of test footage for a new film, again featuring the star of the original, Jeff Bridges, was shown at the San Diego Comic-Con in 2008, under the tentative title "TR2N," a name which spawned a million "Rick Rolls" on You Tube.
Nonetheless, that same footage (now converted to 3D) was shown again at this year's San Diego Comic-Con and has been posted for real on You Tube. Here it is: