After Nigeria's independence in 1960, the cinema business rapidly expanded, with new cinema houses being established. However, there came a significant influx of American, Indian, Chinese and Japanese films; posters of films from these countries were all over theatre halls and actors from these industries became very popular in Nigeria. Towards the late 1960s and into the 1970s Nigerian productions in movie houses increased gradually, especially productions from Western Nigeria, owing to former theatre practitioners such as Hubert Ogunde, Ola Balogun, Moses Olaiya, Jab Adu, Isola Ogunsola, Ladi Ladebo, Sanya Dosumu and Sadiq Balewa amongst others, transitioning into the big screen. The first fully commercial Nigerian films, shot on celluloid, were also made by these filmmakers in the 1960s.