He was a big baseball fan, originally supporting the New York Giants and then the L.A. Dodgers.
He was director Howard Hawks's first choice to play the lead in Man's Favorite Sport? (1964), but he turned it down because he was 59 and leading lady Paula Prentiss was 25 years old.
He was voted the 6th Greatest Movie Star of all time by Entertainment Weekly.
Held a press conference announcing his retirement from acting early in 1953, saying he was very angry over Hollywood's treatment of director Charles Chaplin, who had recently been blacklisted for his liberal political beliefs.
His daughter, Jennifer Grant, gave birth to a son, Cary Benjamin Grant on August 12th, 2008.
His favorite after-shave was Acqua Di Parma.
His final appearance at the Academy Awards was in 1985 to present James Stewart with an honorary Oscar for lifetime achievement.
His mother died in January 1973 at the age of 94.
His only child is Jennifer Grant whose mother is Dyan Cannon.
His performance as Dr. David Huxley in Bringing Up Baby (1938) is ranked #68 on Premiere Magazine's 100 Greatest Performances of All Time (2006).
His performance as T.R. Devlin in "Notorious" (1946) is ranked #16 on Premiere Magazine's 100 Greatest Performances of All Time (2006).
If you look closely at his teeth, you'll find that he only has one incisor (front tooth). Apparently when he was a boy he knocked out a tooth while ice skating. Rather than get into trouble with his father, he opted to go to a nearby dental college and have them gradually push his other teeth together to fill in the gap. Only one person (an eagle-eyed cinematographer) ever noticed and mentioned it to him. It's described in depth in the book "Evenings with Cary Grant".
In His Girl Friday (1940), his character remarks, "Archie Leach said that", a reference to his real name.
In 1957, he accepted the Oscar for "Best Actress in a Leading Role" on behalf of Ingrid Bergman, who wasn't present at the awards ceremony
In 1968, he and fellow actor and friend Michael Caine were walking together and a fan approached them, only recognizing Caine. At the end of the conversation, the fan turned to Grant and commented how accommodating today's film stars are with the public, to which Grant nodded in agreement.
In 1999 he was named the second Greatest Male Star of All Time of American cinema, after Humphrey Bogart, by the American Film Institute.
In keeping with his wishes, there was no funeral service.
In later years he always said the character he played in Father Goose (1964) came closest to his real self.
In March 1968 he was involved in a serious car crash in New York, but fortunately escaped with only minor injuries.
Initally accepted his role in Houseboat (1958) because he was dating Sophia Loren, whom he was madly in love with. After she went and married someone else, Cary, heartbroken, wanted to back out. He couldn't, but the director made sure the production was a smooth one.