Official highlight films for the Indianapolis 500 date back to about 1949. However, newsreel films and highlight films for races prior to WWII also exist, including footage of the inaugural 500 in 1911. Currently, the Indianapolis Motor Speedway produces an official release. Previously, it was not uncommon for multiple films to be produced annually. Among the companies that sponsored films were Firestone, STP, Bowes Seal Fast, Ford, Chrysler, and Ashland Oil.