7. Christmas comes but once a year unless you’re this hapless couple.

What will be revealed when the seventh window of our Advent Calendar is opened? Silver birches in a wintry landscape…?

We’ve chosen a set of 24 Christmas-themed film stills – and each day in the run up to Christmas we’re giving you a teaser clue to the identity of the film it comes from. Click on the teaser to see the full image and find out which film we’ve chosen for the day.

You can see a sneak peek of all the films in and around the Christmas tree above. How many can you already identify?