Rogen not in Knocked Up spinoff

Seth Rogen will not appear in This is Forty, the Knocked Up spinoff written and directed by Judd Apatow.

Movies.com spoke to the actor for his upcoming cancer comedy 50/50, and while he admitted to visiting the set of Apatow's latest movie (This Is Forty was the working title at one point), he claims he's not in it. "Yeah I'm not in it, but I went to visit the set and it looked hilarious," Rogen told us, later admitting that adding his character back into the equation may have been a bit jarring for audiences. "It was a good choice, honestly, because I think it would've confused people.," he said. "But I'm really looking forward to seeing it; I thought the script was unbelievably funny."

During our interview Rogen also said that he'll be beginning production on Jay and Seth vs. the Apocalypse in February, which he calls an "oddly personal" film. He also confirmed that he'll be co-directing with writing partner Evan Goldberg, adding "It's now much more than just Jay and Seth -- there's many other people vs. the apocalypse now. It's gonna be crazy."