I am looking for proper body language pictures or movie clips.

It is hard to find a good photo library that shows human emotions well. Most of the photo libraries use actors who typically are not able to show the real micro-emotions. You typically only find these with photo-journalism.

I would suggest that you try Mirrorpix http://www.mirrorpix.com
For example if you type in crying yopu should be able to find a good picture - although you may have to go through several pages.

Another possibility is to try the Google Image search http://www.google.co.uk/imghp?hl=en&tab=wi&q= Please note that somebody else will own the copyright for these images so always obtain pemission before you use the image. I find that permission is usually granted about 50% of the time.