Trivia

Speaks German fluently.

Her last name was changed as a child, when she was adopted by her stepfather, Richard De Mornay (1914-1962).

Sentenced to a three-month program for DUI offenders, three years summary probation and a $350 fine, after pleading no contest to one count of DUI on February 5, 2008. Was pulled over and arrested on October 30, 2007 on Sunset Blvd. in Los Angeles.

Was engaged to Leonard Cohen.

Changed her published birthdate from August 29, 1959 to August 29, 1962 when she debuted. The mainstream press didn't start reporting her age accurately until the late 2000s.

Gave birth to her second child at age 41, a daughter Veronica De Mornay-O'Neal on March 31, 2001. Father is her ex-boyfriend, Patrick O'Neal.

Gave birth to her first child at age 38, a daughter Sophia DeMornay-O'Neal on November 16, 1997. Father is her ex-boyfriend, Patrick O'Neal.

She attended the radically alternative English boarding school Summerhill.

Has a maternal half-brother: Peter De Mornay (b. January 12, 1962).

Daughter of TV talk show host Wally George.

Was considered for the role of Tinkerbell in the movie Hook (1991).

She wrote the theme tune for a kung fu movie called Xin si wang you xi (1975).

In the Stephen King novel Doctor Sleep, his sequel to The Shining, he writes the line "the hand that rocks the cradle is the hand that rules the world"; De Mornay was the star of the movie of the same name and played Wendy in the miniseries version of The Shining (1997).

Granddaughter of Eugenia Clinchard

Working on the HBO series John from Cincinnati (2007). (June 2007)

In two films she plays a decadent and alcoholic actress who has a hard relationship with her daughter: Apartment 1303 3D (2012) and Jessica Jones (2015).

The fictional date of Judgement day in Terminator 2: Judgment Day (1991); August 29, 1997 is her 38th birthday.

Is often mistaken for Rosanna Arquette.