Will Arnett file for divorce from wife Amy Poehler

Will Arnett has filed for divorce from his estranged wife Amy Poehler.

The former couple, who have two sons, Archie, five, and Abel, three, together, announced their split in September 2012 after nine years of marriage but The Millers actor officially filed court documents to legally dissolve their relationship on last week on April 8.

The 43-year-old star requested joint legal and physical custody of their children, along with visitation rights, according to PEOPLE.com.

Both Poehler and Arnett have moved on since their split.

The Arrested Development actor was linked to Billy Joel's ex-wife Katie Lee, 31, last August shortly after he admitted he was scared of dating.

He said: "I don't know what you do. Do you put out an announcement in the trades? I'M DATING! It all seems very scary to me, to be honest. So I'm kind of keeping pretty close counsel right now."

He split from the celebrity chef in December and started seeing Hollywood producer Erin David shortly before Christmas but it is not known if they are still together.

A source said at the time: "[Erin] produced one of the shows or a film he was in. She produced a lot of Lorne Michaels stuff. Will brought her to Jen [Aniston] and Justin [Theroux's] holiday party."

Meanwhile, Parks and Recreation star Poehler, 42, began dating fellow comedian Nick Kroll six months after she and Arnett announced their separation and they went public with their relationship last May.