Katherine Heigl and Josh Duhamel: "Life As We Know It"

Doing their best to boost interest in their upcoming movie, Katherine Heigl and Josh Duhamel teamed up for the "Life As We Know It" premiere in New York City on Thursday (September 30).

Held at the Ziegfeld Theatre, the lovely co-stars smilingly posed for pictures while joining director Greg Berlanti and numerous co-stars for the red carpet affair in advance of the film's October 8th release date.

As for the plot of the movie, "Life As We Know It" is about "two single adults becoming caregivers to an orphaned girl when their mutual best friends die in an accident."

Recently chatting with ET during a press interview, Miss Heigl - who recently adopted a daughter named Naleigh - spoke about further family expansion with her musician hubby, Josh Kelley.

She dished, "I definitely want to have a lot of kids. I think Josh is down with it. He seems cool. His thing is that he's a little nervous about outnumbering us. So, he thinks it should be like one or two and I think it should be like five or six."

As for Duhamel and wife Fergie, the "Transformers" hunk said, "It's definitely part of the plan. We just need to be in the same city. ... It's just a matter of, like I said, when."

Enjoy the pictures of Katherine Heigl and Josh Duhamel at the premiere of "Life As We Know It" (September 30).