Actress Jodie Foster is not known to be a slavish follower of fashion.

But it appears the Hollywood star has fallen victim to the trend for ultra-thin figures, as the actress revealed her startling weight loss during an appearance in Queensland, Australia.

The Oscar-winning actress was seen at the premiere for new family film Nims Island, and she exposed her decidedly thin-looking frame, and a worryingly bony breastplate, in a low-cut green dress.

The pictures also revealed her seriously veiny hands, which could mean the actress has succumbed to the over-training associated with celebrities such as Madonna and Angelina Jolie.

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Thinner: Jodie Foster is not known for following fashion, but she appears to have fallen victim to the ultra-skinny trend as she showed off her downsized look at a premiere in Australia yesterday

Her new thinner look was in stark contrast to a picture of her taken last December, when the actress looked slightly more filled out.

Maybe its the actress' two sons, Charles and Kit Bernard Foster, that are keeping her active.

Now, the double Oscar-winner appears to be comfortable with her role as mother to two boys, Charles Bernard Foster, and Kit Bernard Foster.

She said: "Boys are easy. I mean, there are just a lot of bruises when they're young.

"With boys, you get a lot of accidental jabs in the eye and stepping on your feet, and those tantrums they cause when they don't want to leave the toy store.

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Scrawny: Jodie Foster seen right in December, but since then appears to have lost a dramatic amount of weight which has left her upper body looking extremely bony, and her hands seriously veiny

"But my boys are getting older now. They go to school all day, and then one wants to do T-ball and the other wants to do karate, so they're actually gone until four-thirty.

"I want them to have curiosity about things they don't know, and a desire to see places bigger than where they grew up."

Last year, she also finally broke her silence about her 14-year lesbian relationship with film producer Cydney Bernard.

In a speech to a gathering of fellow Hollywood stars, the 45-year-old, who was collecting an award, pointedly thanked: "My beautiful Cydney, who sticks by me through all the rotten and the bliss."

It was the first public recognition by Jodie of 54-year-old Miss Bernard, who shares the actress's home.

The actress' new film, "Nim's Island," a family comedy-adventure about a reclusive writer and a little girl who befriends her, also stars Abigail Breslin and opens in the US on April 4.