Astronauts who venture into outer space return to Earth saying the experience changed them in profound ways, awakening, or reawakening, their spiritual beliefs.
And filmmakers who venture into space travel brush up against those same themes. Stanley Kubrick's mystical monolith in 2001: A Space Odyssey, George Lucas' new age-y Force stuff in the Star Wars saga - even Mel Brooks' Spaceballs considered humankind's place in the infinite expanse of the universe.
Sunshine, Danny Boyle's beautiful, ultimately incoherent sci-fi thriller, likewise warp-speeds into heavy-duty philosophical spheres. The tale of a last-ditch mission to save the world, Sunshine tracks the eight-person crew of the Icarus II, a ship carrying a seismic nuclear payload that, it's hoped, when detonated on its target, will rekindle a dying sun. Never mind global warming: In the year 2057, the world is freezing, the sky is a gloomy dark, and life on the planet is on a fast track to extinction.