"The Magic Box was the English film industry's contribution to the 1951 Festival of Britain. Its all-star cast generously forsook their usual salaries for the privilege of paying tribute to that unsung pioneer of cinema, William Friese-Greene, here played by Robert Donat. Adapted by Eric Ambler from the controversial biography by Ray Allister, Magic Box contends that Friese-Greene was the true father of motion pictures, and not such upstarts as W.K.L....