This weekend, more than 20 years after his last extraterrestrial-focused feature, Steven Spielberg returns to his roots with Disclosure Day. The movie draws from the filmmaker's career-spanning fascination with the possibility that life exists somewhere other than Earth.

In a summer where Gen Z YouTube filmmakers like Curry Barker and Kane Parsons are changing the game at the box office, it would be really sweet if the blockbuster master Steven Spielberg himself could break through.

Here's a rundown of 21 celebrities who believe aliens are real, and what they've said about our extraterrestrial neighbors. "It’s my first film that will be considered science fiction that I do not consider to be science fiction,