Film has existed since the late 1800's and already by the year 1927 it was being used by artists to create their works. Fritz Lang's Metropolis is considered to be the best representation of German Expressionist film. Lang uses film to subjectively express his thoughts and feelings towards a subject, rather then tell a straight forward narrative.
Even Pop Artist Andy Warhol used film to create his rather odd works.
Musician Trent Reznor of Nine Inch Nails uses video and LEDs to create spectacular performances during NIN shows.
Minneapolis Philosopher, Writer, and Poet Azrienoch uses Typography based films to bring his poetry to life.
Even commercials for clothing can be considered works of video art.