Angelina Jolie's children think her job is "ridiculously easy".

Angelina Jolie

Angelina Jolie

Four of the actress' six kids - Pax, 12, Zahara, 10, nine-year-old Shiloh and seven-year-old Knox - voice characters in her new movie 'Kung Fu Panda 3'.

After working on the project, Angelina admits her brood have an entirely different perception of her profession.

She said: "It's been, 'If you want to, you can jump in, and here's a crazy idea' ... and some of them were shy, but this one they all really wanted to and they all came together and did their recording together and took it very seriously -- it was cute.

"Now that they've had a taste, they think Mommy's job is ridiculously easy."

Angelina was speaking as she posed on the red carpet at the Los Angeles premiere of the animated film.

While she went solo for the occasion, she said her children were at home getting ready.

The 40-year-old actress looked stylish in a black shift dress and plain heels and admitted she had done little to get ready for the event, adding to Extra: "I just pulled myself together, just cleaned the dirt off my feet."

Angelina also spoke about her husband Brad Pitt's recent Oscar nomination for 'The Big Short', on which he acted as producer.

She said: "I'm always proud of him because of all the work he does, and how he balances his family life and work. I love him, I'm proud of his film. I'd be proud either way, obviously. "It's lovely for him, it's lovely for the film, it's an important film -- I don't need that [Oscar recognition] to be proud of him."