If you're in London this weekend you couldn't do better than to go to a sing-along performace of the film at the Prince Charles Cinema. With 3 screenings on Saturday and 2 on Sunday, there's sure to be a time to suit you.
Of couse if you can't get there, you can always watch it on TV. Christmas Day on Channel 4 from 4.35pm to 6.15pm, perfect while parents are sleeping off the pud! Here's the trailer to get you in the mood: