Update: Since this writing, Disney has announced it is moving ahead with production of "Frozen 2."

It is a rare film whose trailer can generate as much excitement as the feature film it precedes. It happened most memorably in 1999, when an early teaser for "Star Wars: Episode 1 -- The Phantom Menace" premiered before the Brad Pitt drama "Meet Joe Black" (among other films) -- an event that saw many a frenzied fanboy paying for a full-price ticket only to walk out of the theater en masse after the trailer ended.

With the subsequent rise of the Internet and studios' use of it as a way to cheaply disseminate trailers -- which are, after all, nothing more than commercials for their films -- that sort of thing doesn't often happen anymore.

This weekend, however, many moviegoers might detect a similar excitement for the clip that runs before Disney's live-action "Cinderella" adaptation. It's not a trailer premiere that's generating excitement, but the animated short "Frozen Fever," a seven-minute "sequel" of sorts to the feature-length phenomenon "Frozen" that is scheduled to be attached to all prints of "Cinderella."

Granted, if you go to "Cinderella," you shouldn't expect "Phantom Menace"-style walkouts. Many of the most rabid "Frozen" fans aren't old enough to drive themselves home afterward, after all. Plus, there's no small amount of genuine anticipation for director Kenneth Branagh's main attraction. Still, you can bet there will be those who are at least as excited about the animated short than about the feature itself -- and maybe moreso.

After "Frozen Fever" played before an advance screening of "Cinderella" earlier this week at the AMC Elmwood Place, the audience erupted in applause. For an animated short.

And Disney still is pretending that it hasn't made up its mind as to whether it should make a full-length "Frozen" sequel. Riiiight. Keep playing it coy, Mickey. Keep playing it coy.

The expected "Frozen Fever" fever got us thinking: Is there any movie whose trailer -- or related short film -- could lure you into theaters, regardless of the film to which it was attached?

While you're thinking that over, please cast your vote in our "Frozen" vs. "Cinderella" reader poll.

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