Woody Harrelson is relieved Jennifer Lawrence hasn't been ''f***ed up'' by fame.

The 'Hunger Games' actor loves that his 24-year-old co-star has remained down-to-earth despite becoming the ''biggest female star in the world''.

Recalling the first time they ever met, he told Vanity Fair magazine: ''She'd just done a movie, and people in the industry knew her, but she wasn't really famous. And so I watched her grow into, amazingly, the biggest female star in the world. And it's staggering to me how much she's been able to just hold on to her basic decency and her amazing, marvelous spirit.

''You know, it's not terrible, people tell you you're great; what's terrible is when you start believing it. She never got f**ked up.

''She's an amazing girl. She's one of my favourite people on the planet.''

Woody delights in the fact his friend has no filter and doesn't worry about censoring herself.

He added: ''She's just very forthcoming. It's almost shocking how much she'll say, you know. That's super-fun, and also it's shocking sometimes because it's so on the edge.

''It's like she doesn't have a censor. I really love that in people. I guess there are some people I don't love it in, but in her it's wonderful.''