Just seen this: a free 3-day trial of French cinema channel Cinémoi (Sky Channel 343) via tvguide.co.uk. It is a French film channel with some great movies which are all subtitled and French cinema is supposed to be some of the best in the world.
It is probably worth checking the schedule so that you can see something you are interested in!
You need to supply your Sky viewing card number to activate the trial (not sure if Freesat From Sky viewers will be able to get this offer- I will try and find out). Edit: called them and they said it was fine so long as you have a Sky viewing card and receiver so Freesat From Sky [not Freesat] should be eligible, too. They also said it gets activated at 3 o'clock).
It is not open to people who have had a free trial before.
Follow the link or call 0845 880 8008 and use the code tvguide-Moi (for tvguide.co.uk).
I hope this is of interest to someone!