Films I can watch again and again.
Mrs Miniver, Goodbye Mr Chips, Wonderful Life for old black and white films.
Shawshank Redemption, The Pianist, Erin Brockovich for more serious films.
Almost any film suitable for children, I have a fairly large collection.

The Railway Children and Chitty Chitty Bang Bang being my favourites.
Almost any musical with Les Miserables in Concert being my choice at the moment.