Sienna: Keira’s perfect parent

Sienna Miller is convinced Keira Knightley will be a “perfect” mother.

Keira is currently expecting her first child with Klaxons rocker James Righton.

And her good friend Sienna, who is mother to two-year-old daughter Marlowe with Tom Sturridge, thinks the Laggies actress is extremely prepared for parental duties.

“She doesn’t need any advice. She will be perfect,” Sienna told Page Six.

“We’ve spoken a lot and I know she will be amazing.”

According to the most recent gossip, Keira is in her second trimester.

The actress married musician James in May 2013, after just over two years of dating.

Although Keira has appeared in a number of hit movies like Bend It Like Beckham, the Pirates of the Caribbean franchise, Pride & Prejudice and The Imitation Game, she doesn’t necessarily want her children to follow in her footsteps.

"Oh, 100 per cent, I’d absolutely tell her not to," she told Elle previously when asked how she would react if her daughter wanted to become an actress.

"I would 150 million trillion per cent be totally discouraging. Teenage years should be done privately. You should be going out and getting unbelievably drunk, getting into ridiculous situations, making mistakes. That’s what that time of life is about and we should do that privately.

"Saying that, I don’t regret it – I wouldn’t do my life any differently, but having lived through it… There was a very long time when [interviewers] were all, 'Well you’re a sh*t actress and you’re anorexic and people hate you,' which, for a teenager, is a very strange thing."