According to Ted Dekker's website:
We have great news for all you fans who love House and have been wondering if the movie would EVER be released. The answer is "Yes!"
Lionsgate Entertainment and Roadside Attractions, which purchased the film from 20th Century Fox, will be releasing the film in theaters across the U.S. on November 14th, 2008.
An official announcement will be coming soon about which markets and in how many theaters the film will be playing. We also just got word that the official movie website is in production. More to come soon!
Watch the trailer: