Annie Hall star Diane Keaton went to her grave privately defending former costar and ex-lover Woody Allen against damning allegations he was a disgusting sex creep, RadarOnline.com can reveal.

"Folks told Diane to just leave it alone, don't stick your nose into this ugliness," a friend said. "She took his denials at face value, and she didn't give a damn about any blowback she would get." Article continues below advertisement

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The Godfather actress, who died suddenly at age 79 on October 11 after reports circulated she was privately struggling with her health, was notorious Allen's partner on screen and off since the 1970

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