In 1927, Claude Frisse-Greene shot a series of film around London based on a color (or colour) technique that his father had experimenting with. His father, William Friese-Greene, was an early pioneer of cinematography. His process was called 'Biocolour' which produced the illusion of color by exposing alternating frames of black and white film with color filters, then staining the film again with red or green.

It produced a pretty decent illusion of color, but its downfall was a noticeable flicker and red and green fringing on objects in motion, so the films needed to be sped up.

Due to early legal issues with another color film process called 'Kinemacolor,' Biocolour was never developed to its true potential. After William died in 1921, Claude renamed the process 'Friese-Greene Natural Colour' and went on to be a cinematographer for over 60 films from 1923-1943.

Via Bank Holiday and Wikipedia