Another Straight Divorce } Amy Poehler and Will Arnett, 9 yrs

(Will Arnett and Amy Poehler pose in the VIP Lounge at Variety's Power of Comedy Presented By The Sims 3 Benefiting The Noreen Fraser Foundation at Hollywood Palladium on November 19, 2011 in Hollywood, California.Credit: Alexandra Wyman/WireImage.com)

Not very funny news.

Amy Poehler and Will Arnett are separating after nine years of marriage, Us Weekly has learned exclusively. "It's very amicable," a source says. The couple's rep confirms the separation to Us.

The couple, who wed on August 29, 2003, are parents to sons Archie, 3, and Abel, 2. Saturday Night Live alum Poehler, 40, and Up All Night actor Arnett, 42, have frequently appeared onscreen together, in both TV and film.

Their joint credits include Arrested Development, Blades of Glory, Horton Hears a Who!, On Broadway, Spring Breakdown and Monsters vs. Aliens. Arnett also guest starred in an episode of Poehler's NBC smash comedyParks and Recreation in 2010.

"People think we sit around and make each other laugh and stuff," Poehler told USA Today of their bond in 2007. "But we're real homebodies."

This was the first marriage for Poehler and the second for Arnett, who was wed to actress Penelope Ann Miller, 48, for one year until divorcing in 1995.

Poehler is currently nominated for two Primetime Emmy Awards: Outstanding Lead Actress in a Comedy Series and Outstanding Writing for a Comedy Series, both for Parks and Recreation. Arnett is also nominated in the Outstanding Guest Actor in a Comedy Series category for his role as Devon Banks on NBC's 30 Rock.

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