Major problem

can anyone tell me if it is possiable to duplicate a movie clip and then set random _x and _y axis off the top of the stage but in a selected area.
im making a game and i have peices falling from the sky but when you hit them or they hit a bar below the stage i want the movie clip to duplicate itself ,remove itself and then send off the duplicate to a short distance off the top of the stage with a random speed so that there is a continuas fall of the objects onto stage and they are not just in a set pattern.
any help would be appreciated thanks.:beer: