By Alla Byrne
June 18, 2009

Isla Fisher is a self-confessed T-shirt and jeans girl, but working with costume designer Patricia Field on Confessions of a Shopaholic encouraged her to take more fashion risks.

Find out what the two have to say about dressing with confidence and looking fabulous without spending a fortune.

Q: How was working with costume designer Patricia Field on your wardrobe?

Isla Fisher: She's incredibly imaginative. She's not married to any designers and she's open minded. Every single look tells a story. I'm not a fashionista. I don't have much experience in that world, but I felt I was kind of educated in the end and that even my own fashion style is now sort of braver. I enjoy dressing a lot more.

Q: What was your inspiration for the costumes in Confessions of a Shopaholic?

Patricia Field: My inspiration for Isla Fisher's character, Rebecca Bloomwood, was her energy. She was a frantic shopper. She has tons of things and variety. The energy of the character and the actress led me to a variety of bright clothes.

Q: How would you describe your fashion sense?

Isla Fisher: I am not too into fashion because I am more of a jeans and T-shirt girl. Thanks to Patricia Field I have become more confident about the way I dress. But I am more comfortable in sneakers or Ugg boots.

Next, costume designer Patricia Field offers free fashion advice, while Isla Fisher chats about her shopping style.

[header = Isla Fisher chats about shopping, while Patricia Field offers fashion advice.]

Costume designer Patricia Field shares fashion advice when budget shopping and when splurging, while Isla Fisher chats about shopping.

Q: What tips do you have for budget shopping?

Patricia Field: You can find great things for not a lot of money. Just because you spend on a high price tag doesn't mean you're guaranteed something fierce and fabulous. You need a good eye to pick out great things at great prices. Style does not depend on high priced items. It's better to try to spend as little as you can but keep it looking fabulous.

Q: Do you love to shop?

Isla Fisher: I don't shop very well at all. I tend to buy things that end up not being quite right - whether it is a clothing item that does not match anything in my wardrobe, or some cooking apparatus that is utterly useless.

Q: Are there certain items that people should splurge on?

Patricia Field: It depends on what makes you happy. If you see something and you love it, but maybe it's a little more than you want to spend, then buy it. Just don't spend as much on the next item. It's all about balancing. You should splurge on what's really special. Really you're the most important thing, not the clothes.

Confessions of a Shopaholic comes out on DVD and Blu-Ray June 23.