It's funny how some films and tv shows entertain, no matter how often you see them, while you never bother to watch others more than once. Off the top of my head I can tell you that in my house the 'classics' (ie: the ones my wife, son and I have watched at least half a dozen times since buying the dvd), include the first two Mummy movies, the first and fourth Die Hard movies, The Princess Bride, The Three Amigos, The Scorpion King, The Rundown, the first three Indiana Jones''s, The Fifth Element, Serenity, all three Lord of the Rings movies, Miracle on 34th Street (both the original and the Richard Attenborough versions), Elf, The Shop Around the Corner, Deep Rising and Lake Placid. TV shows include Joss Whedon's Firefly, two British shows, The Vicar of Dibley and The Thin Blue Line and more recently, The Closer and The Big Bang Theory.
On Friday night we picked out another favorite, Galaxy Quest. As died in the wool Star Trek fans (I'd have included the STNG and most of the movies in the above list, but my son's not a fan), my wife and I crack up each time we see it.
I know it's a Tim Allen movie, but for me, Alan Rickman steals the show, much like he did when he played the Sheriff of Nottingham to Kevin Costner's Robin Hood. There are so many highlights, it's hard to pick a favorite, but on my shortlist would have to be the store-opening scene, just before the crew get taken up to The Protector, where Dr. Lazarus (Rickman) almost vomits the words 'By Grabthar's hammer, what a savings.'
Like I said, 'classic'.