effects

hi everyone, im a high school ameture film maker, i had a few questions about the HBO series Band of Brothers. In it, during all the action seens, i.e. running, battle scenes, explosions, they have possibly a filter that they've used to make it a little grainy, it also looks a little bit like its in slow motion, it could be because it was filmed in progressive scan and the camera is moving too fast and makes it look grainy or possibly because they used a weird shutter speed. i f you know please help, im about to start production and would like to use it in my film. thanks mike