Watch a young Angelina Jolie cry in deranged acting class: 'I need to hurt you'

Shortly afterwards she went on to win an Oscar for Girl, Interrupted

Angelina Jolie proves she is the master at emotional acting

If you need further proof that Angelina Jolie is a deserving Oscar winner, look no further than this video of the actress in an acting class aged 25.

The vintage clip emerged on the Daily Mail and shows Jolie displaying her impressive skills during an intensely emotional scene.

"I want to hurt you, I need to hurt you," she says to a female co-star, laughing in a seemingly unstable state before crying and making disturbing faces.

Jolie's coach comes over at the end of the rehearsal to praise her efforts. "I thought your eyes were wonderful. I especially liked the movement in the scene for you. Something was really connected," he said.

"I felt for you a real sense of style. You didn't allow it to just keep going there, you changed it lots of times. You found the humour and you found that and you took the scene in different directions."

The clip was recorded shortly before Jolie, now 40, won Best Supporting Actress for her performance in 1999's Girl, Interrupted.

Directed by James Marigold, the film follows an 18-year-old girl's stay in a mental institution. Winona Ryder took the lead, with Jolie playing a charismatic sociopath who encourages her to stop taking her medication and get up to mischief with her.

Most recently, Jolie directed and starred in romantic drama By the Sea with her actor husband Brad Pitt. It is due in UK cinemas on 11 December.