Kristen Wiig finds it frustrating that people don't take her drama seriously.

The 41-year-old actress is best known for satirical TV show 'Saturday Night Live' and comedy 'Bridesmaids' and she admits it is hard when people laugh at her ''dramatic'' scenes because they only expect her to be funny.

Kristen - who can next be seen playing a lottery winner who quits her psychiatric medication and buys a talk show in 'Welcome to Me' - said: ''I always say people know you how they know you and I think people know me probably from 'SNL' and 'Bridesmaids'.

''I've done a couple of things that have been dramatic and sometimes I get frustrated because...there was a scene I shot once where it was like, 'Oh this woman is so sad that she's doing this thing' and when we screened it people laughed.

''I was really nervous about that with ['Welcome to Me'] because I know that there's some really dark moments and there's some really funny moments and it's kind of up to the audience to interpret them.''

And Kristen was very ''nervous'' about the comical moments in her new movie because she didn't want it to come across that her character was a figure of fun.

Speaking to Violet Grey's The Violet Files, she said: ''I didn't want to make it too light. And that was hard because there are funny things in this movie but I never wanted it to seem like I was making fun of her.

''I was more nervous about the comedy in the film than I was the drama for that reason.''

In the film, Kristen shot a nude scene but didn't do so to be sexy.

She said: ''Being naked in a film or on stage isn't always supposed to be sexy. It was the part and it felt right, so I did it.''

''Of course you're nervous, and you know people are gonna make comments but if you care about that, your job instantly becomes more difficult. You have to do things for you.''