Blake Lively used daughters 'as weights' during 5am workouts for The Rhythm Section

Blake Lively had to get extremely fit for her upcoming role in The Rhythm Section - and had a very gruelling filming schedule too.

But the actress found a unique way of fitting in her filming and workouts around being wife to Ryan Reynolds - who is also a successful actor, with a new documentary Welcome to Wrexham being released soon - and mum to her two daughters, James, five and Inez, three.

Blake has revealed she would wake up at 5am every morning during the eight months she was filming, and wake up the girls too, including them in her exercises.

A photo posted by on

Speaking on Vanity Fair's YouTube channel, she said: "I woke up at 5 am, but mostly because I was doing mama duty with my girls.

"Have breakfast with them, hang out with them, work out with them, 'cause I didn't want to to wake up any earlier. I'm not Dwayne 'The Rock' Johnson. I had to just get some sleep."

She continued: "So I would sort of use them as weights. Instead of wearing a weight vest, I got to wear my children."

Blake then explained how she would then have an hour's drive to work, and get home around 9pm to put her kids to bed - and often fall asleep in there herself, due to her busy day.

A photo posted by on

But Ryan would come in and wake her up to get her in her own bed.

She said: "My kids had, like, a pack-and-play, almost like a crib, and I would crawl in there and sing them to sleep.

"Usually I'd fall asleep in there. Almost every single night I'd fall asleep in there. And then my husband would usually come in and be like, 'Hey, you're safe now. You can come to bed.'"

Since filming wrapped on The Rhythm Section, Ryan and Blake have welcomed a third daughter - whose name is yet to be revealed - and Blake confessed having three children who were aged four and under all at once was a lot to handle.

A photo posted by on

She said: "It's like going from two to 3,000! We have so many children. It's pretty crazy. We're outnumbered. It's a lot.

"People say that from two to three, it's the same, it's kind of easy. Those people do not have three kids. It is crazy."

Ryan Reynolds lives with his wife Blake and their four children in a luxury New York mansion. Though it's been reported that the Deadpool actor has bought a home in North Wales, to be close to Wrexham AFC - the football club he co-owns with Always Sunny in Philadelphia star Rob McElhenney.

Hayley is a Celebrity Features Editor with more than five years' experience in online and magazines. She currently looks after all things celebrity for Woman, Woman’s Own, Woman’s Weekly, Woman & Home, and Before joining Future, Hayley spent a year as a TV reporter for Mirror Online and a year and a half as a showbiz and TV reporter for OK! Online - but was forced to write about tech and cars for a year before that, despite knowing nothing about either!.