Jack Nicholson Grew Up Believing His Mom Was His Sister
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Jack Nicholson realized his mother June was actually his sister when a 'Time' magazine researcher contacted him during the fact-checking process ahead of a profile timed to the release of 1974's 'Chinatown.' His sister, June, was actually his mother, and his mother, Ethel May, was actually his grandmother.

Jack Nicholson realized his mother June was actually his sister when a ‘Time’ magazine researcher contacted him during the fact-checking process ahead of a profile timed to the release of 1974’s ‘Chinatown.’ His sister, June, was actually his mother, and his mother, Ethel May, was actually his grandmother.