A movie - Inconvenient truth

I saw a movie the other day, that impressed me - "An inconvenient truth" with Al Gore. Well, here's a link to the trailer I have found on the internet: http://www.youtube.com/...
I cannot determine the genre of the movie, maybe a horror one. As said in the trailer, "it shocked the audience wherever they saw it". The plot is well composed, and mr. Gore is playing well as an actor. I think it's been an interesting film. More about it may be seen at www.climatecrisis.net