Reese Witherspoon is often the ''only woman on a set full of men''.

The 40-year-old actress was thrilled to be joined by so many women on the set of 'Big Little Lies' and praised each of her co-stars - which includes Nicole Kidman and Zoe Kravitz - for teaching her one thing or another.

She told People magazine: ''So often I'm the only woman on a set full of men. It became this really interesting group of women whose work I'd always loved.

''Getting to work with them every day was a pleasure. I learned so much from each of them.''

Meanwhile, Reese previously gushed about how she has ''always looked up'' to Nicole.

She said: ''We didn't know each other very well before we started but I just always ... I always looked up to you. You're such an incredible actress.''

Whilst Nicole added: ''I call myself your big sister now ... I'd never had the experience of working with another woman so closely that I got to call you and say, 'What do you think I should do with this character? I don't like this scene and I don't know how to play this.''

And Reese has become ''deeply invested'' in her 'Big Little Lies' co-stars.

She added: ''We talked about nothing to do with work. It was always just our personal lives: what's going on with our kids, single girls and who they're dating. We just became a really close-knit family, even with the kids, too - hanging out with them and playing with them.

''You get deeply invested in people. I think that's part of the experience of getting to know people. What deepens our relationships on set, even more than a rehearsal, is the glass of wine you have after work. 'What's on in your life? How's your mom? How's your heart?' That kind of stuff.''