Star Wars actor Oscar Isaac has read a letter by Alec Guinness letter at a performance in London.

In the letter, Alec Guinness branded co-star Harrison Ford a “languid young man”.

Writing during filming of the 1977 movie Star Wars: A New Hope, actor Alec Guinness, who played Obi Wan Kenobi, said: “Can’t say I’m enjoying the film.”

The letter from the late actor talks about the movie’s “rubbish dialogue”.

Oscar Isaac, who plays Poe Dameron in Star Wars: The Force Awakens, was at Letters Live at Freemasons’ Hall in London.

Alec Guinness wrote to his friend Anne Kauffman: “New rubbish dialogue reaches me every other day on wadges of pink paper, and none of it makes my character clear or even bearable.”

The actor said he was working with “Mark Hamill and Tennyson (that can’t be right) Ford. Ellison? No! Well a rangy, languid man who is probably intelligent and amusing”.

Letters Live sees actors and performers reading out literary correspondence to a live audience.

Actors Benedict Cumberbatch and Louise Brearley also took part, along with theater and opera director Sophie Hunter.

Benedict Cumberbatch read out a letter by American author Mark Twain to the American poet Walt Whitman, which paid tribute to all the changes he had witnessed in the world over the course of his lifetime.

Louise Brearley and Benedict Cumberbatch then performed letters between Bessie Moore and Chris Barker, two sweethearts separated by World War Two.

Sophie Hunter read out a letter from deaf and blind woman Helen Keller to the New York Symphony Orchestra, thanking them for the music which she had experienced through the radio by feeling the vibrations.