Kate Winslet's children have a ''very special'' bond.

The 'Steve Jobs' actress, who has daughter Mia, 15, and sons Joe, 11, and Bear, 22 months, from three different marriages, admits she wouldn't be able to juggle motherhood without the help of her eldest child.

She explained: ''My 15-year-old, she's so wonderful. She helps, and not only that but I see sides of me now coming out in her. She is incredibly helpful to me as a woman and as a parent. I'll say to her, 'Mims, can you please have Bear for the next hour? I'm just gonna grab a shower and I've got a couple of things I've got to do.' She's like, 'Yep, sure!'

''Children should play with each other, you know? And look after each other. That's really what we have, and it's very special.''

Meanwhile, the British actress admits she is keen to add to her impressive collection of prestigious awards, which already includes an Emmy, Grammy and an Oscar, by winning a Tony.

She told PEOPLE: ''I've prided myself on never having a goal, but I suppose now I've got one, haven't I? I would absolutely love to be on Broadway. I don't know how the hell I'll figure that out, but like with 'Steve Jobs,' where there's a will, there's a way.''