You put food in your mouth every day. But do you know exactly what you’re consuming when you pick up chicken breasts at the grocery store or drive though a fast-food restaurant for a cheeseburger? Or do you care?  Probably not, director Robert Kenner says in his documentary “Food, Inc.“—and you should.

Moon” does something extraordinary: It seems familiar and derivative, yet it upends your expectations about science fiction and surprises you over and over. Melancholy and mesmerizing, equal parts mystery and character drama, it keeps you guessing until the end.  The intelligent, assured debut from director Duncan Jones—David Bowie’s son, though we won’t have to describe him in terms of his famous father for much longer—harkens back to the fundamentals of the genre, in which people and provocative ideas mattered more than shiny gadgets and splashy effects.