The editing process involved several techniques to enhance the film. Fades and blurred effects were used for opening titles. Brightness and colors were adjusted to improve lighting. Reverb added to music made it sound like a small room. Rapid cuts built dramatic tension before a masked man entered. A scene was reversed and sped up before a gunshot to increase drama. A black and white filter made the final scene look more emotional. Running scenes were slowed to 40% speed. The film ended as titles faded to black while dramatic music faded out.