Just asking [screen capturing]

Maybe this sounds stupid; I want to get an screenshot from a movie, with the 'printscreen' button, but when i try to save it in a program such as paint, a blank screen appears, instead of the picture. Is there another way?

with the most programs that play movies there is a way to take a movie still (aka a screenshot)

http://www.killermovies.com/forums/showthread.php?s=&postid=2348996#post2348996

There is also an opportunity to capture all movements on the screen to video... Sometimes it's much more convenient way! It can be done with Screen VidShot - quite good capturing program...