Set the lens switch to MF (manual focus) and twist the focusing ring on the lens to bring the movie into focus.
You can also shift the Exposure Compensation if required, through a range of –3 to +3 stops. (The camera will display up to five stops either way, but the extra two stops of exposure compensation will be applied only to still shots taken when you’re in Movie mode.)
To apply the exposure shift, rotate the Quick Control dial to display the exposure meter at the bottom of the screen. Move the bar under the meter to the right for a brighter picture; move the indicator left for a darker picture.
Hope that helps,