Rebel Wilson is completely comfortable in her own skin.

The 36-year-old Australian actress gets candid about her weight in a new interview with The Telegraph, saying it has advanced her career in comedy. Wilson recalls casting an actress bigger than herself in the first play she wrote, and how the actress appeared to effortlessly get more laughs from the audience than Wilson did.

"And I was like: 'Oh. That girl's getting a lot of laughs, a lot easier than me. What is it?' Because I don't think there's much difference in talent," Wilson recalls. "I remember distinctly thinking: 'I think it's because she's fatter.' And then, I don't know if it was mega-conscious, but I thought: 'How can I get more laughs? Maybe if I was a bit fatter…' And then suddenly I was fatter, and doing comedy."

"There's something about me that people like laughing at," she adds.

WATCH: Rebel Wilson 'Flashes' the Audience While Making Out With Adam DeVine at MTV Movie Awards

Wilson reveals she has a hormonal imbalance that makes her gain weight rapidly. The Pitch Perfect 2 star does admit she has thought about wanting to dramatically shed pounds.

"Oh yeah! I'll take six months off, and just do a total transformation. But then, so many people go: 'Don't you do it!'" she says. "But I think: 'Why not?'"

Still, Wilson clearly takes pride in her shape and the fact that she has inspired other women to have higher self-esteem.

"I saw my size as being an advantage, whereas so many women see it as a disadvantage," she says.

Though it's not just her weight that Hollywood appears to be preoccupied by. Last May, Wilson was accused by an Australian tabloid of lying about her age to appear younger, which she at first laughed off. She ended up suing the publisher for defamation.

"Hollywood IS age-ist," Wilson now comments. "That's why people do crazy s**t to their faces -- out of desperation to look younger. But I think my career is based more on my personality, so it doesn't really matter."

Wilson also credits her enviable career to being business-minded. The actress trained as a lawyer and used to draw up her own contracts before hitting it big in her breakout role in 2011's Bridesmaids.



"People just don't think. Even though this is a creative field, it is a business," she explains. "When you looked at the actors around me at the Australian Theatre for Young People, I wouldn't have thought I was the most talented. But I was definitely unique, and I definitely had the entrepreneurial brains."

She also has plenty of determination, and isn't ashamed to show it.

"There's a thing that goes on, with teenagers, where they try to downplay stuff," she observes. "Like, they're not that smart, they're not that good, they'll just sit back and be mediocre. I hate that. Everyone has a talent."

"I'm probably definitely very ambitious," she adds.

WATCH: David Schwimmer Viciously Attacks James Corden's Wife, Weight, More in Rap Battle With Rebel Wilson

Wilson isn't the only celeb who's been open about her weight recently. On Saturday, ET chatted with Oprah Winfrey at the Essence Festival in New Orleans, where the Weight Watchers spokeswoman said she was still on the weight loss program’s eating plan.

"I'm counting the points every day and slowly it's happening," Winfrey said.

The 62-year-old television icon is also not obsessed with watching the scale.

"It's a feeling where you get to the point where [you think], 'Oh I can go to the store, I can pick that size, it's available.' I don't have to, like, have it altered and all that stuff," she says about her target weight goal. "So, I'll know when I'm there."

Watch below: