"He placed in me an absolute trust and in turn I placed an absolute trust in him and grew to love him," said Kingsley. "I along with millions of others whom he touched through his life and work will miss him dearly."
With his abundant snow-white hair and beard, Attenborough was one of the most familiar faces on the British arts scene — universally known as "Dickie."
He appeared in a many major Hollywood films, directed a series of movies and was known for his extensive work as a goodwill ambassador for UNICEF and other humanitarian causes.
As a director, Attenborough made several successful movies, from "Oh What a Lovely War" in 1969 to "Chaplin" and "Shadowlands" in the 1990s.
The generation that was introduced to Attenborough as an avuncular veteran actor in the 1990s — when he played the failed theme park developer in "Jurassic Park" and Kriss Kringle in a remake of "Miracle on 34th Street" — may not have appreciated his dramatic range.
A small, energetic man with a round face that remained boyish even in old age, he was perfectly cast at the start of his career as the young sailor or airman of British movies during and after World War II.
In his 1942 film debut as a terrified warship's crewman in "In Which We Serve," a 19-year-old Attenborough made a small part into one of the most memorable roles in the movie, which won the Best Picture Oscar.
In 1947, Attenborough gave one of the best performances of his career as the teenage thug Pinkie in "Brighton Rock," the film version of Graham Greene's novel. Attenborough's baby face and air of menace combined to make it one of his most memorable roles.
His youthful appearance nearly cost him the lead role in the original cast of "The Mousetrap," because its author, Agatha Christie, didn't think he looked like a police detective. But he starred with his wife, actress Sheila Sim, when the hit play opened in November 1952 and stayed for 700 performances.
In 1959, Attenborough joined fellow actor Bryan Forbes in film production. "The Angry Silence" in 1960 was their successful debut, with Attenborough playing a strike-breaking factory worker. It was one of the first of the gritty, working-class films that heralded Britain's "new realism" of the 1960s.
Together, Forbes and Attenborough produced "Whistle Down the Wind" in 1961 and "The L-Shaped Room" in 1962. Their last film, 1964's "Seance on a Wet Afternoon," won Attenborough Best Actor awards from the London Film Critics and British Film Academy.
In the meantime, he had appeared as a prisoner of war in 1963's "The Great Escape" — known for its classic ensemble cast, including Steve McQueen, James Coburn and Charles Bronson — and starred in "Guns at Batasi," for which he won another British Film Academy award. In 1967, he won a Golden Globe for Best Supporting Actor in "The Sand Pebbles."
In 1969, Attenborough turned to directing with "Oh What a Lovely War," a lampoon of World War I, which won a Golden Globe award as best English-language foreign film. Three years later, he made "Young Winston," the story of Winston Churchill's early life.