The Blue-Line drive-in located in West Beach, Adelaide was the first drive-in located in South Australia, and the first to be constructed outside of Melbourne. It was opened on 28 December 1954, it was followed by the Mainline Drive-In theatre at Gepps Cross on 7 October 1955, which was Australia's first drive-in / walk-in theatre (with a capacity for 500 cars and seating for 400 patrons). It was followed by the Shandon in Seaton in early July 1956, the Hi-Line in Panorama in March 1957, and the MGM Metro at Marion in June 1957. The first country drive-in opened at Port Pirie in September 1957.