The director of Paris Hilton's new movie has defended the star against claims she was late on set and failed to learn her lines. Actress SIMONA FUSCO, who also appears in BOTTOMS UP! claims the socialite-turned-pop star's diva antics almost ruined the straight-to-video film. But director ERIK MACARTHUR confesses he had an affair with Fusco and claims she is angry because he only gave her one line. MACArthur tells PageSix.com, "I think Simona is trying to take down the movie."


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