I did a film of a sceenshot and nothing happened.
This makes no sense Anglically, please rephrase. Do you mean you took a screenshot from a film? My advice is to set your camera up with the shot you want in the Film Viewer. Then, full screen. Once full screen, press PrintScreen. Now, go to Paint and press the clipboard. You should see the image of your screen in Paint. Save it to your desktop and share it with us.