I just watched this movie (on Instant view if you have Netflix, can watch it now!) and enjoyed it immensely.

The Spanish film starts off with a mild mannered man and his wife discussing their home and construction. He has a pair of binoculars and is watching the woods surrounding his home when he sees something... a woman undressing. He goes to investigate and dives into a very strange series of events. The movie is a very clever time travel movie that goes deep into paradoxes and fate/destiny/choice issues without discussing them ever, but just presenting them to the audience in the actions of this character as he travels in timeand influences himself in the past. It all fits neatly together as you watch it like a slowly forming puzzle.

Definitely worth renting or watching instantly on Netflix! Highly reccomended.

Peace
-K