“We can point fingers and condemn other people — it’s so easy because the world is a madhouse — I try to keep my mouth shut and enjoy life as best as I can.”
He stated that parts of the film reminded him of his own father’s passing, adding that facing “fear” is what worried him the most.
He said: “I remember this once strong, robust man, declining and depressed – and fearful.
“I looked at the photograph of me with my two daughters on the bedside table on the [film] set and the radio and the little notepad and I knew what he felt at the end.”
On December 29, Sir Anthony sent a message to his 750,000 Twitter followers celebrating 45 years of sobriety, a decision he believes was crucial to staying alive.
He said: “The hallmark of anyone who is hooked on cigarettes or booze or food, whatever the addiction is, is the stubbornness.
“You think, ‘I can do it.’
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“And then it hit me that, of course, we all are. None of us is of any importance at all.
“In this vast multi-universe where we all exist, we are nothing. It goes back to Socrates — I know that I know nothing.”
Sir Anthony has received the coronavirus vaccine and is looking forward to restrictions being lifted, but has not found lockdown a chore.
He said: “I get up every morning, I eat my oatmeal, I go to the gym, my wife goes for a swim.
“I paint, I read, I play complicated pieces on the piano because I want to keep my brain active.
Sir Anthony was knighted by the Queen for services to the arts in 1993.
In The Father, dementia takes over Sir Anthony’s character – making him charming and quick-witted one moment, but unbearably cruel the next.
It comes out in cinemas on June 11.
Help is available for anyone suffering with any of the issues discussed by Sir Anthony, or similar.
You can call the Samaritans free at any time on 116 123 or email them at [email protected]