Steven Spielberg’s upcoming alien science-fiction thriller, “Disclosure Day,” is set for a theatrical release in June 2026. The film is described as a UFO-focused project that has generated early buzz after receiving favorable first reactions. According to reporting, the project was first announced in May 2024, originally presented as an untitled event film that was later associated with UFO themes. Additional promotion has continued as the movie approaches release, with outlets reporting that a final trailer has been released. Fox News characterizes the new preview as “bone-chilling” and notes that it is driving significant anticipation ahead of the June 2026 date. Deadline similarly frames the film as Spielberg’s latest alien thriller and highlights that it has drawn positive early attention. Beyond the timing of announcement, the general UFO/alien premise, and the release of a final trailer alongside early audience reaction, the sources provided do not add further confirmed plot details or cast information.