Sir Michael Caine has been given the Freedom of the City of London in recognition of his film career.
The veteran actor, famous for his trademark Cockney accent, turns 80 on March 14 and has been acting in films since the 1950s.
In a break with tradition, the special service did not take place at the Guildhall but at the Museum of London, which has just unveiled an exhibition on Caine's life and times.
Beverley Cook, the museum curator, said: 'Sir Michael Caine is one of London's most loved and recognisable characters.
'He was the first actor to bring an authentic London accent to the big screen, and although Hollywood success made him an international star, he remains inextricably linked to his London roots.
'This exhibition will celebrate how the city influenced both Caine's life and his career.'
Commenting on the new exhibition, Sir Michael said: 'I think the Museum is great for London, and I am so proud to be included.'
Caine's popularity has endured over the years and in recent years he has appeared in box office hits like The Dark Knight Rises and Inception.
However the star, born in Rotherhithe, south London, the son of a Billingsgate Fish Market porter, is perhaps best known for his memorable roles in films such as The Italian Job, Alfie and Zulu.
He also has twice won the Oscar for best supporting actor, for The Cider House Rules and Hannah And Her Sisters.
Caine was knighted in 2000 under his birth name, Maurice Micklewhite, and now joins the likes of Stephen Fry and Dame Judi Dench in receiving his latest honour.
The Freedom of the City of London dates back to 1237.
It originally referred to someone who had been given the right to trade or carry out their craft in London's Square Mile. However, it is now largely a symbolic gesture and anyone can be nominated.
The Museum of London exhibition runs from March 8 to July 14 and entry is free.