how is this complete statement now?

A hologram is made by recording the interference pattern between coherent reference light and coherent light scattered from an object, usually using a laser. Shining the reference light through the recorded film reconstructs the image of the object.

In typical white-light reconstruction holograms, the film is placed between the reference light and the object, so the two light beams interfere in opposite directions, creating many microscopic layers throughout the volume of the material. This allows for strict filtering of the right colour and angle of light, allowing for the image of the object to be reconstructed by white light.