She was spotted in good spirits last weekend as she took her two sons to the supermarket. But it may well be that actress Amy Poehler was putting on a brave face.For the 40-year-old Saturday Night Live favourite has announced today that she is separating from her husband of nine years, actor Will Arnett.Sources have said that the split is ‘very amicable’.The couple were married in August 2003 and have two boys together, Archie, three, and Abel, two.The pair have often appeared alongside each other in TV shows such as Arrested Development, and in the films Blades of Glory, Horton Hears a Who!, On Broadway, Spring Breakdown and Monsters vs. Aliens. Will has also been a guest star in Parks And Recreations, Amy’s hit NBC show. Will went on to tie the knot with Amy after divorcing his former wife of one year Penelope Ann Miller in 1995.