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In page Animation:

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Live-action/animation is a technique combining hand-drawn characters into live action shots or live-action actors into animated shots.[1] One of the earlier uses was in Koko the Clown when Koko was drawn over live-action footage.[2] Walt Disney and Ub Iwerks created a series of Alice Comedies (1923–1927), in which a live-action girl enters an animated world. Other examples include Allegro Non Troppo (Italy, 1976), Who Framed Roger Rabbit (US, 1988), Volere volare (Italy 1991), Space Jam (US, 1996) and Osmosis Jones (US, 2001).[citation needed]