Multiplex holograms makes it possible to record moving objects with very low velocity. To palliate this disadvantage a new method is proposed. Each picture of the film is a one-step rainbow holographic stereogram recorded from two or more stereoscopic slides of computerized pictures. A CW Ar(+) laser and a 35 mm Holotest 8E56 film are used. The experimental set-up and some photographs of a holographic film are presented.