Arnold Schwarzenegger and Linda Hamilton during the filming for the Graham Norton Show. (Isabel Infantes/PA Images via Getty Images)

Terminator: Dark Fate star Linda Hamilton has revealed she was made to wear bottom and breast padding for the latest movie - despite working out and dieting a year before shooting began.

The 63-year-old actress made the revelations while appearing on BBC One’s The Graham Norton Show on 18 October.

Appearing alongside co-star Arnold Schwarzenegger, Hamilton said: “I Leaned out, worked for a year. Didn’t have carbohydrates for a year, then I show up on set and they were like ‘well we have to build you a butt’ - which is interesting after a year of working out and leaning down they had to actually add ass.

“I would take pictures of my t**s and a** when I would get up in the morning and I’d get into my trailer and send it to my kids - ‘t**s, a**’ they we are - we’re going to be fine.”

View photos Linda Hamilton, left, and Arnold Schwarzenegger star in Skydance Productions and Paramount Pictures' Terminator: Dark Fate More

The star also revealed she ignored calls from the movie’s producer James Cameron, who she was married to in the 1990s, until he made it clear he wanted to discuss the work.

She told host Graham Norton: “We don’t talk at all. He rang three times and it was only on the third call when he mentioned it was about work that I rang him back!”

View photos James Cameron and actress Linda Hamilton, pose together at the 55th Golden Globe Awards' (Bob Riha, Jr./Getty Images) More

She added: “It took me a little while to decide if I had something more to do with her character.”

Read more: Terminator stars Arnold Schwarzenegger and Linda Hamilton – then and now

It is the first starring role Hamilton has had in a Terminator movie since 1991’s Terminator 2: Judgement Day. She first played the now iconic role of Sarah Connor in the 1984 movie, The Terminator. The franchise was created by Cameron, and he took the directing role in the first two movies.

View photos Linda Hamilton and Arnold Schwarzenegger attend the "Terminator: Dark Fate" photocall on October 17, 2019 in London, England. (Photo by Dave J Hogan/Getty Images) More

Sat alongside Hamilton, Schwarzenegger praised his co-star, saying: “Linda set the bar high for all female action roles. She really is a bad ass!”

They were joined on the show by Blondie star Debbie Harry, Bake Off winner Nadiya Hussain, DJ Spoony and the newly reformed Sugababes.

Terminator: Dark Fate is in cinemas from Wednesday, 23 October.