P sued D to get declaratory relief from D’s attempting to prevent P from transporting motion picture film and newsreels between points and places within the State of Utah. P claimed that such activity placed an undue burden on interstate commerce. D claimed the points were within Utah and were intrastate commerce. D denied attempting, threatening, or intending to interfere with or burden interstate commerce. The trial court ruled for D and dismissed the complaint. The Court of Appeals reversed the judgment of the District Court and ordered further proceedings in conformity with that view that D's activities burdened interstate commerce. D appealed and the Supreme Court granted certiorari.