Color, Split Screen and Rear Projection Tests (2006) 
Early tests 1937 - 49. Shows two examples: the first has a man cowering from two huge fighting monsters, the second shows a glimpse of ancient man.
Directed by Ray Harryhausen
Early tests 1937 - 49. Shows two examples: the first has a man cowering from two huge fighting monsters, the second shows a glimpse of ancient man.