The first 3D feature film was Nat Deverich's 5-reel melodrama Power of Love (US '22), starring Terry O'Neil and Barbara Bedford. It premiered at the Ambassador Hotel Theater, Los Angeles, on September 27, 1922. Produced by Perfect Pictures in an anaglyphic process developed by Harry K. Fairall, it related the adventures of a young sea captain in California in the 1840s. The only other American feature in 3D prior to Bwana Devil (US '52) was R. William Neill's Mars, aka Radio Mania (US '22), with Grant Mitchell as an inventor who succeeds in making contact with Mars via television. It was produced in Laurens Hammond's Teleview process.