The agent of Dad's Army star Bill Pertwee said he died peacefully with his family around him. The actor, who was 86, was known for his role as the air raid warden Hodges in the classic 1970s' comedy. In 2007 he was made an MBE by the Queen.
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The Oscars was plunged into chaos as La La land was mistakenly announced as the best picture, the actual winner was Moonlight.
The tourists had no idea they were about to be dropped off at the star-studded ceremony to meet A-listers.
It comes just weeks after actor Michael Keaton confused the names of films Hidden Figures and Fences at the Golden Globes.