Stanley Kubrick's 2001: A Space Odyssey and Andrei Tarkovsky's Solaris cast long shadows over this ambitious psychedelic sci-fi adventure by Danny Boyle (Trainspotting, 28 Days Later . . . ), but it's a solid effort nonetheless. Set in 2057, it concerns a space mission to launch a nuke into the dying sun in hopes of saving earth from perpetual winter. Boyle's spiritual and metaphysical musings intertwine neatly with his pop sensibility, imbuing this with an art-house intelligence without diluting its summer blockbuster appeal. Naming the spacecraft Icarus II unnecessarily foreshadows the chain of events that occur as the ship approaches the sun, but Boyle's denouement is deliciously ambiguous. With Cillian Murphy, Rose Byrne, Michelle Yeoh, and Chris Evans. R, 109 min.