Maggie Gyllenhaal was given a pamphlet of acting tips by Emma Thompson.

I just thought to myself, 'She's teaching me and I'd be an idiot not to accept it.' And Emma's what, 50? It would be silly of me not to acknowledge that she knows more than I do.

The 31-year-old starlet - who is working alongside the British actress in the upcoming comedy 'Nanny McPhee and the Big Bang' - was given a set of notes from the renowned movie star to help improve her acting skills.

Maggie revealed: "Early on, Emma gave me a couple of notes. And she's not directing me, she's acting with me! If some other actor started giving me notes I would tell them to f**k off - there is not one actor I would allow that from. But they were fantastic notes - clear and totally helpful."

Rather than taking the advice as a criticism of her ability, Maggie decided to make the most of Emma's helpful comments and learn from the invaluable guidance.

She explained: "I just thought to myself, 'She's teaching me and I'd be an idiot not to accept it.' And Emma's what, 50? It would be silly of me not to acknowledge that she knows more than I do."

'Nanny McPhee and the Big Bang' is due for release in 2010 and is a sequel to the 2005 hit 'Nanny McPhee'.

The storyline was adapted by Emma - who will reprise her role as the title character - from the Christianna Brand books 'Nurse Matilda'.