There has been multiple Welsh films such as "The Corn Is Green" in 1945 starring Bette Davis (an American actress with a career spanning more than 50 years and 100 acting credits), "The Three Weird Sisters" in 1948 directed by Daniel Birt, and "The Last Days of Dolwyn" in 1949, which was filmed at the Lake Vyrnwy dam.
1945: The Corn Is Green, starring Bette Davis, was directed by Irving Rapper. Ruth Elizabeth "Bette" Davis (April 5, 1908  October 6, 1989) was an American actress with a career spanning more than 50 years and 100 acting credits. 1948: The Three Weird Sisters was filmed near Aberdare, directed by Daniel Birt. 1949: The Last Days of Dolwyn was filmed at the Lake Vyrnwy dam. 
