Katherine Heigl was pretty uptight in "Knocked Up." And she's not any less uptight in her new flick, "The Ugly Truth." In the new rom com, opening today, she plays uber-uptight TV producer Abby, who finds herself challenged to find love by her chauvinistic on-air correspondent played by Gerard Butler. What a challenge, indeed! But according to Katherine herself she thinks she might be getting very uptight in real life thanks to her work in these flicks.

"Yes it was fun," she told MTV News at the junket for "The Ugly Truth." "Unfortunately, I think I'm starting to take a little bit of my roles with me in my real life cause I'm playing a lot of uptight control freak women lately and I'm becoming one. I'm really relating, but yeah it was really fun to play and her absolute cluelessness on how to approach men and how to win a guy over."

Press Play above to hear more from the "Grey's Anatomy" star and keep reading about her "Ugly Truth" after the jump.

Of course, Abby got to let loose a little in the flick, during one very orgasmic dinner scene. One that would even make Meg Ryan blush. "It was physically challenging; I was exhausted by the end of the day and all my muscles were saw from like tensing up and trying to squash it and not express it because at the end of the day she was at a business dinner. She didn't want them to know what was happening she wanted it to be on the down-low."

She added that although having to publicly orgasm at first was "very awkward," but she admits that by the time shooting was over, that all changed. "By the end of the I was totally over it."