It's a film packed to bursting with golden nuggets of surprise, humor, and pathos, though it bears noting that the film runs a track vaguely similar to Spielberg's E.T.. That's not to say in any way that Bird's film is a simulacrum; both films owe a great deal to the classic sci-fi films of the Fifties, notably William Cameron Menzies' Invaders From Mars and Jack Arnold's It Came From Outer Space (both 1953 and both referenced in Bird's film).