Still, an actress would not be an actress if she did not allow herself the opportunity to explore other areas. Taking a three day break from her Roswell shooting schedule, Heigl flew out to Vancouver for a stint in the recently released "slasher" feature, Valentine, starring alongside David Boreanaz. "My heart is really with film," says the aspiring actress. "I started in film and I’ve done ten [so far]. It’s really where my heart is so I hope to do more. I think I’ve run the gamut of horror for a while. I’ve never really tried theatre so that might be fun."

If she could choose from any role, Heigl’s dream project would be one that allowed her the freedom to stretch the boundaries of her craft. "I think my dream role would probably be something like Joanne Woodward in The Three Faces Of Eve," says Heigl. "I think that was a fascinating role to play because you’re not just playing one role, and you have got to sell it so people can believe this person is schizophrenic. I thought that was really fascinating."

Fans of Roswell will remember that Heigl did have the opportunity to play such a character in the episode Meet The Dupes. In it, the audience discovers that the alien / human teens they’ve grown to love have evil "twins", depicted as New York City punk rockers.

"I did have a chance to do some of that in Roswell as Lonnie [Isabel’s duplicated], and I loved it," says Heigl. "It was a real challenge for me and I was really scared because I never had that opportunity before to play that kind of character. Most people want to cast me as a cheerleader! I got to create an entirely different person. She walked differently, she talked differently and she held herself differently. I have always been whining about the fact that that’s what I really wanted to do. I want to just be given the chance to create a whole different person, and when they gave it to me, I was like ‘Oh, my God. I don’t know if I can do this!’ But I did it and I was really proud of it."

With so much of this season’s emphasis being placed on aliens and science fiction, one can’t help but wonder if the actress had any prior knowledge of the "Roswell incident" before being cast.

"I didn’t really know much about it," admits Heigl. "Obviously there was a supposed UFO crash in Roswell, New Mexico in 1947, but I didn’t know more than that. I still don’t know much more than that other than what we’ve had on the show. My father gave me this huge official government records book that you can buy and I read the first, maybe twenty, pages. It pretty much calls the whole thing a weather balloon and that the people involved were given the opportunity to speak freely. There were no more secrets put on anything, but it sounds like a load of crap to me."