<Li> Yaphet Kotto as Carl </Li> <Li> Addison Powell as Abe </Li> <Li> Astrid Heeren as Gwen </Li> <P> The photography is unusual for a mainstream Hollywood film, using a split - screen mode . The use of split screens to show simultaneous actions was inspired by the breakthrough Expo 67 films In the Labyrinth and A Place to Stand, that latter of which pioneered the use of Christopher Chapman's "multi-dynamic image technique", images shifting on moving panes . Steve McQueen was on hand for an advance screening of A Place to Stand in Hollywood and personally told Chapman he was highly impressed; the following year, Norman Jewison had incorporated the technique into the film, inserting the scenes into the already finished product . </P>

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