On Netflix USA they currently have Get Santa to watch.
This movie is currently on UK cinema ( pictures lol) So by opening a free trial you can watch it for free and accessing Netflix USA (hotukdeals share openly how to do).
Link to imdb about movie: http://www.imdb.com/title/tt1935940/
How to watch Netflix USA in uk: http://www.mobot.net/access-netflix-uk-41314
Out of curiosity: How much would it save someone in London?