He has played President Richard Nixon, Hannibal Lecter and vampire slayer Van Helsing – but Sir Anthony Hopkins says he still found the role of Alfred Hitchcock “daunting”.

I didn’t want to hear my voice back or see any of it, I wouldn’t see any playback because I didn’t want to shock myself

The 74-year-old Oscar Award-winner was in London on Sunday night together with Dame Helen Mirren for the premiere of their new film, Hitchcock.

The film tells the story of the Master of Suspense’s relationship with wife Alma Reville during the making of his 1960 hit slasher film Psycho.

Speaking on the red carpet outside the British Film Institute on London’s South Bank, Sir Anthony said he was “obviously a little nervous” about the role.

“I didn’t want to hear my voice back or see any of it, I wouldn’t see any playback because I didn’t want to shock myself,” the Welshman said.

“I saw the film when it was finally cut together and I was very pleased with it. It was a tough role to play, just tricky because everyone knows him and he has been such a formidable presence in our living rooms through the years and probably the most famous director of all time – so it was daunting.”

Sir Anthony, who used a prosthetic ‘fat suit’ to get into the director’s skin, also defended Hitch against critics that say he had a dark side. He said: “I don’t think he was a monster – he was very witty, he didn’t tolerate small talk.

“He was a very practical man and he didn’t have any time for nonsense.”

Dame Helen described her character, Hitchcock’s wife Alma Reville, as the director’s “artistic and domestic rock”.

“People say there were four hands on Hitchcock’s movies and two of them were Alma’s,” she said.

Dame Helen, decked out in a stylish black Dolce & Gabbana outfit, said she was having a “pretty good year” after working with Sir Anthony in Hitchcock and Al Pacino in an upcoming biopic about legendary music producer Phil Spector.

Asked what it was like collaborating with Hopkins for the first time, the 67-year-old said: “I was nervous, as you can imagine, he is such a hugely iconic actor and so brilliant. But, on the other hand, we both come out of theatre so we had that understanding between us and it turned out to be a really wonderful experience.”

First-time director Sacha Gervasi also said he had needed to overcome his nerves about working with two of British cinema’s most respected actors.

He said: “I remember in the first day of rehearsals I was sitting there, watching them read the scenes, and I thought ‘My God, this is extraordinary’. I felt like I was directing them but I was also in the front row of the National Theatre watching this unbelievable performance, so it was a fantastic experience.”

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