Several important segments of the professional photographic industry are using film products on polyester base. To date, the motion picture industry has primarily used polyester base for super 8 and some 16mm applications. Polyester base offers distinct advantages over triacetate base which would make it particularly suitable for other motion picture applications. Polyester has greater tensile and tear strength, is less apt to suffer surface abrasions on the base side, and is far more dimensionally stable. Some of the concerns the industry has on polyester base are in the areas of splicing, slitting, rejuvenation, and the greater mechanical strength which causes fear of equipment damage. With the objective of measuring the awareness of polyester base and experience with polyester in the market, and also to investigate the readiness of the motion picture industry to accept a more widespread use of polyester base, Agfa-Gevaert sponsored a market survey of U.S. motion picture laboratories, distributors, and exhibitors. This paper reports in detail on the results of this survey. The consequences for the film manufacturer of a market moving towards increased use of polyester base conclude this report.