Once your footage has been shot, your film will enter the postproduction phase. Now you must edit the film to its best commercial and artistic potential. In doing so, you have to create the right ambiance through sound and music — two subtle disciplines without which a film would be empty. Many a film has been saved or slaughtered in postproduction, so to assure yours is a winner you need to give careful thought to the choices you make and the ultimate visual and aural appeal you want your film to exude.