it certainly is a gorgeous ass... And who does this muscular backside belong to? This hottie: Christian Bale. I guess it was around this time last year his meltdown on the set of 'Terminator Salvation' hit the web, where he screamed at one of the crew members for around 5 minutes. Family guy made a parody of it and there was even a remix made of it, which ended up being my favorite thing of 2009. I've read a lot about him being a really big jerk in real life, granted I don't personally know, so I can't really comment on it. One thing I do know for sure... he is beautiful! The still of his butt was taken from the movie 'American Psycho' and its an excellent film. Definitely worth seeing for the shower scene alone!