Here’s a sci-fi movie that’s very meta, and very, very clever. It’s a movie about an old Star Trek-type TV series whose star (Tim Allen) has alienated most of his former co-stars, yet gets an unexpected chance at redemption when some real aliens, believing the show to be a documentary, arrives on Earth to seek help from the heroic TV characters. It’s such a sweet, smart movie – and co-stars in this 1999 movie include Tony Shalhoub and, in a wonderful change-of-pace role, Sigourney Weaver.