The trade also says that the film, despite not being shot in 3-D, will be presented in the format (read: Clash of the Titans' reportedly crummy 'diorama effect'), and that part of the move to Martin Luther King weekend was to offer it on 3-D screens without being dominated by Tron: Legacy's release the week before.
If Box Office Mojo is to be believed, though, two other 3-D genre films -- Priest and The Cabin in the Woods -- have already called dibs. The latter was already delayed a whole year to be converted itself! Don't be surprised if one of these titles re-locates yet again (probably Priest, as Screen Gems falls under the Sony umbrella and doesn't stand to make as much or cost as much as Hornet would -- UPDATE: Priest has indeed been moved to 3/4/2011. Thanks, Mojo!).
I don't doubt that director Michel Gondry will deliver an unconventional action movie, and Seth Rogen's already an unconventional action star. Maybe the flick will bowl everyone over when it finally does come out (it was originally supposed to open this coming July), but right now, the signs point less to "vote of confidence" and more to "damaged goods."
UPDATE: And no sooner than I was done writing this piece did Harry Knowles over at AICN break that M. Night Shyamalan's summer tentpole The Last Airbender will likewise be converted to 3-D in time for its July 2nd release. I'm now including a poll, because I want to get a read on what you guys and girls feel about moves like these. Do you honestly feel like you're getting more bang for your buck? Could you care less? Was this Martin Luther King's dream all along?