Michael Gambon’s favourite Dumbledore line from all the Harry Potter movies was just one word

The late Sir Michael Gambon had an unmistakable impact on the Harry Potter film franchise.

He played Professor Albus Dumbledore for the final six movies and took over the role following the death of Richard Harris.

He was crucial to the development of Harry and the defeat of Voldemort.

Sir Michael had so many scene-stealing moments from The Prisoner of Azkaban to The Deathly Hallows Part 2.

Back in 2011, just before the final film in the franchise was released around the world, the cast of the series opened up about their favourite moment.

While everyone will have their own Dumbledore moment on the big screen, Gambon's was short, sweet and simple.

"I hardly ever know my lines in the film," he said (via BBC News)

"But my favourite is when I appear as a ghost on the station platform in the final film. I say, 'Harry...' And I felt like crying."

It was literally one word that left that much of an impression on Gambon.

The scene in question is incredible pivotal in the final film.

Voldemort has just killed Harry in the Forbidden Forrest, which left many readers and viewers shocked.

However, this had to happen because The Boy Who Lived had actually become a Horcrux when Voldemort killed Lily and James Potter all those years ago.

If Harry wanted to stop the Dark Lord once and for all, he would have to die.

After Voldemort casts the Killing Curse, Harry wakes up in limbo and he's greeted by Dumbledore on a bright, white train platform.

Warner Bros.

"Harry...you wonderful boy. You brave man. Let us walk," he said.

Later in the scene, he adds: "Help would always be given at Hogwarts to those who deserve it. Do not pity the dead, Harry. Pity the living. And above all, those who live without love."

It's such a poignant moment and it clearly stuck with Gambon after the filming had finished.

It has been posted all over social media in the wake of Sir Michale's death.

A statement on behalf of his wife Lady Gambon and son Fergus Gambon, issued by publicist Clair Dobbs, said: “We are devastated to announce the loss of Sir Michael Gambon.

“Beloved husband and father, Michael died peacefully in hospital with his wife Anne and son Fergus at his bedside, following a bout of pneumonia.

"Michael was 82. We ask that you respect our privacy at this painful time and thank you for your messages of support and love.”