SIGNS is a must watch film for all lovers of movies and all lovers! ;-)
It is a film made by Patrick Hughes and was one of the 2009 Cannes film festival winners. The subject matter is Communications and there is not even one dialogue. Beautifully made, the film has a superb emotional & visual appeal and really brings home the message that sometimes Words are just meaningless...
Note: YouTube link can be reached by clicking on the title.