I have seen it, and it's the greatest one! But I was just thinking of a conventional movie, not a documentary. I'll definitely try to use it, as it is also subtitled in spanish.
Great idea, thanks so much!
...but was delighted to discover this supercomputer in a deconsecrated Barcelona church
I recommend Religulous by Bill Maher. It isn't actually 'a film' but very interesting and engaging.
Bill Maher is both a serious and funny commentator...
There's The Meaning of Life (Monty Python)..
The 'Bishop's Gambit' (30 minutes) is funny and informative about the Church of England during the 1970s or 80s...
I don't know what it would cost to watch it in Spain.
There's Dave Allen videos if you can connect your computer to the screen...
Here are some efforts (free) from the Humanist Society Scotland..
link is http://www.video3uk.com/humanismscotland
I'll let you know if I think of others.
Remember AtheismUK's song..
which is quite good.