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In page Brad Dexter:

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Dexter produced The Naked Runner (1967), which starred Sinatra and was filmed in London. Dexter and director Sidney J. Furie clashed with Sinatra over the latter's unwillingness to finish the film, and, after it was completed, Dexter resigned. "I was the only guy who dropped Sinatra ... I couldn't put up with his nonsense", Dexter said at the time.[citation needed] Publicly, Dexter denied any falling out with Sinatra. He claimed to have left Sinatra's company to make a film with Furie based on the Sam Sheppard case.