Today everything goes faster, they could announce the documentary at the beginning of October and start theatrical release at the end of November. 45 - 50 days are enought. Alought something went wrong with postproduction process or they finally decide to release the movie in 2026.Looking back through the internet, Flight 666 was announced with it's release date at the end of Jan 2009 for a theatrical release at the end of April, so 3 months warning.