In Italy, most of her films were dubbed by Fiorella Betti. She was occasionally dubbed by Dhia Cristiani during the mid-fifties, most notably in The Robe (1953). Other actresses like Miranda Bonansea, Rosetta Calavetta and Rina Morelli also lent their voice to Simmons at some point. From the sixties onwards, Maria Pia Di Meo became her official Italian voice.

In 1958, she accepted the Oscar for "Best Actor in a Leading Role" on behalf of Alec Guinness, who wasn't present at the awards ceremony

Played Desiree Armfeldt singing "Send In the Clowns" in the London production of "A Little Night Music" in 1975. It ran for two years.

(May 2007) Living in California, where she has been for the last fifty years.

She was made a Fellow of the British Film Institute in recognition of her outstanding contribution to film culture.

As of 2007, she is one of six women, who have received Best Actress nominations for performances directed by their spouses. The other five are Frances McDormand for Fargo (1996), Gena Rowlands for A Woman Under the Influence (1974) & Gloria (1980), Julie Andrews for Victor Victoria (1982), Elisabeth Bergner for Escape Me Never (1935) and Joanne Woodward for Rachel, Rachel (1968). Jules Dassin also directed his future wife Melina Mercouri in an Oscar-nominated performance (Pote tin Kyriaki (1960)), but they weren`t married yet at the time of the nomination.

In the early 1980s she and daughter Kate Brooks lived in the Litchfield County town of New Milford, Connecticut. They later returned to their long-time California home in Santa Monica.

Even before her American debut, she was revered and beloved by both the British critics and filmgoers. By the end of 1950, she was the #4 box office attraction, American or British, in British cinema.

In America from the early 1950s, Jean found out that RKO head Howard Hughes had purchased the remaining six months of her Rank Studio contract. When Hughes claimed that an oral agreement with Rank precluded her from being loaned out to any other studio, she sued RKO. The legal battle raged for over a year. When the suit was finally settled, RKO had a three-year contract for Jean`s services but was obligated to pay her $250,000 in addition to her legal fees. Furthermore, she won the right to work on loan to other studios at a substantial salary.

Jean was made an OBE (Officer of the Order of the British Empire) for services to acting in the 2003 New Year Honours List.

Becoming depressed at the lack of quality parts being offered her, Jean became addicted to alcohol. In 1986, she sought professional treatment.

Naturalized U.S. citizen.

Turned down the role of Jean Pargetter in the British TV series "As Time Goes By" (1992).

Daughter, with Richard Brooks, Kate Brooks. Daughter, with Stewart Granger, Tracy Granger.

Spouse: Richard Brooks (1 November 1960 - 1977) (divorced) 1 child Stewart Granger (20 December 1950 - 12 August 1960) (divorced) 1 child

Born in England