Are you an O2 customer? If so, you can snag a free movie rental courtesy of O2 Priority Moments and Play Movies. The list of titles is limited and you can only rent in SD rather than HD, but it's free right?
To claim, fire up the O2 Priority app and select 'All' then 'Online' and the 'Movie Gift from O2' will be there in the list. Titles available are;
- The Second Best Exotic Marigold Hotel
- Jingle All The Way
- Life Of Pi
- This Means War
- Ruby Sparks
After you redeem the offer in the O2 app, the code is valid for 4 weeks and after you 'buy' the film, you get a few weeks to start watching too.
Not sure which is my pick of that lot, but 'Jingle All The Way' (with Arnold Schwarzenegger!) is fun this time of year.