Target recently revealed a more than a minute long video featuring some behind the scenes in making "The Hunger Games" movie. It features more on the camaraderie of the cast especially the tributes despite the fact that they have to kill one another in the movie. Below is a screencap, Target didn't allow its video to be embedded but you can see it on their page. Once you click on the screenshot below, click on the EXCLUSIVE video in the left side.
Below are some animated GIF of the video. I found this set on Tumblr via theeverlarks.