Reese Witherspoon admits juggling the needs of her three children is "hard".

She said: "It's a wonderful thing to be able to have a great family around you and realise how fortunate I am.

"My husband and I have a beautiful young son and that's given us so much joy. Sometimes it's hard to manage everything during the day because you also want to give your older kids as much of your time as you can too.

"Your mind is going in 10 different directions and you think you can't keep up but somehow you manage."

As part of her research for 'The Good Lie', Reese visited a Sudanese refugee camp and was accompanied on the trip by her daughter and the 38-year-old actress thinks the visit had a profound effect on Ava.

She told Britain's OK! magazine: "I hope she gained consciousness, awareness and a feeling of wanting to give back.

"Kids nowadays, we get them all these technologies and access to things that disconnect them. So, as much of the world as you can show them is great.

"Ava's a wonderful, socially conscious girl but even a kid that reads a million books about a situation doesn't understand it until they see it themselves.

"She didn't say a word the whole day. She really didn't talk about it until a couple of days later. It's definitely going to affect her for a long time, as it did me as well. It was amazing."