Short answers, pulled from the story.
Michael Caine was born Maurice Joseph Micklewhite on the 14th of March 1933 in Rotherhithe, London. He adopted the stage name Michael Caine in 1954 after spotting The Caine Mutiny on a cinema marquee in Leicester Square. In July 2016, he legally changed his name by deed poll to Michael Caine to simplify airport security checks.
Michael Caine has won two Academy Awards, both for Best Supporting Actor. He won his first for Hannah and Her Sisters (1986) and his second for The Cider House Rules (1999). He received six Oscar nominations in total, with the other four - for Alfie (1966), Sleuth (1972), Educating Rita (1983), and The Quiet American (2002) - being for Best Actor.
Michael Caine's final film was The Great Escaper (2023), in which he starred alongside Glenda Jackson. He officially announced his retirement from acting on the 13th of October 2023 in a BBC Today radio programme interview. The film, released on the 6th of October 2023, is based on the true-life story of a British World War II veteran who attended the 70th anniversary D-Day commemorations in France.
The catchphrase was invented by Peter Sellers, who introduced it on BBC1's Parkinson show on the 28th of October 1972 while doing an impression of Caine's habit of quoting from the Guinness Book of Records. Sellers also used an impression of Caine as his answering machine message throughout the 1970s. Caine himself later used the phrase as a joke in his 1983 film Educating Rita.
Michael Caine appeared in seven Christopher Nolan films: Batman Begins (2005), The Prestige (2006), The Dark Knight (2008), Inception (2010), The Dark Knight Rises (2012), Interstellar (2014), Dunkirk (2017), and Tenet (2020). He played Alfred Pennyworth in the Batman trilogy and later called that trilogy one of the greatest things he had done in his life.
Caine was called up for compulsory national service in 1951. After basic training and twelve months in the Queen's Royal Regiment, he served with the Royal Fusiliers in Korea from 1952. He contracted malaria during service and was sent home in 1953. The experience, including witnessing Chinese human wave tactics, changed his political outlook and left a lasting mark on his character.