Seth Rogen Opens Up About Katherine Heigl and 'Knocked Up'

— -- Seth Rogen opened up to Howard Stern on Monday about what exactly went down after the smash hit "Knocked Up," specifically, how he felt about some comments his co-star Katherine Heigl had about the film.

“As we were making the movie, honestly, I was like, ‘I would make a dozen movies with her. I would be whatever the s---- version of Tom Hanks and Meg Ryan is,’” he told Stern for his radio show.

Rogen said he thought the duo had great chemistry and said filming was "a really good time."

In fact, he was recently watching the film and noticed how funny the two were together, adding "while we were filming, I thought 'This is the greatest thing ever.'"

Shortly after the film came out, however, Heigl said in interviews that she didn't appreciate the way the women in the film were perceived, which Rogen took as a loss of trust. Stern called it a "falling out."

Stern also described an interaction the two stars had in public after the film.

"I thought she hated us," Rogen said, adding the movie was well-received and he was proud of it.

"Then we just heard she didn't like it and that it seemed like she didn't have a good experience making it and that she didn't feel the product was reflective of how she thought she should be portrayed. And when that happens, as someone who's an egomaniac, I just get hurt by that," he added.

But Rogen said she should have felt like she could change anything she wanted at the time.

"We have a very open process. ... You have the ability to say anything at any moment. 'I don't like this scene, I don’t like how I’m coming across here.’” he explained.

Earlier this year, the actress took back a bit of what she said almost a decade ago, telling the same radio show that Director Judd Apatow allowed everyone to improvise, but she wasn't happy with where she took the character.

Rogen added in Monday's interview that he likes Heigl and wishes her nothing but the best in her career and does't want this experience or what she may have said to "hurt her career."