The actress took time out from her career following the death of her husband Robert Graham from a rare blood disease in 2008, and she admits she was glad to work on the comedy movie – about life and death and cancer – because she could get tearful.
She told Radio Times magazine: "It was extremely cathartic. Every day I could legally cry, which was important to me. I was living it the way I lived it. My work has always reflected my life."
Following his death Anjelica – who is also known for her relationship with Jack Nicholson – left Los Angeles and she thinks it helped her begin to get over her grief.
She added: "It takes me away from the pain I was going through in the last few years, with death and being in a house that I knew at some point I would have to move away from.
"Change is sometimes very painful. A new person emerges from the chrysalis of who you were and you go from feeling vulnerable to feeling that something brilliant has changed your life for the better."