Automobile used in Hollywood Cavalcade

I have the original poster for this movie. It is beautiful and shows on one lower right panel what appears to be the Keystone cops riding in an early car. I have not seen the movie but the car is I believe one that I own that came from Warner's studio purchased by Bill Harrah in 1958. Steve McQueen owned it and it appears in the PBS special on the life of Steve with his friend Bud Eakins being interviewed in front of it. The car is a 1908 Tourist 2 cylinder and was made by the Auto Vehicle Co. (1902-1909) in Los Angeles, Cal.
It is very distinctive with a large brass script across the radiator, the word "Tourist". The car was painted for the movie a baby blue (1938 Plymouth color).
I would like to find a copy of the movie or see it in a theatre.