LOS ANGELES-Chris Pratt has filed for divorce from his wife Anna Faris citing ''irreconcilable differences'' - five months after they split.

Chris Pratt has filed for divorce from Anna Faris.

The 38-year-old actor split from the 'What's Your Number?' actress five months ago, but there's clearly been no reconciliation during that time as he has now legally terminated their eight-year marriage on the grounds of irreconcilable differences.

According to the legal documents, obtained by DailyMail.com, submitted at the Superior Court Of Los Angeles, the pair are asking for joint custody of their five-year-old son Jack and have assured the judge that their property settlement is sorted.

A source told TMZ: ''They have a prenup. [In mirroring divorce documents,] they are both asking for joint custody of 5-year-old [son] Jack. We're told the property settlement agreement is almost completely worked out.''

Fans were hoping that the estranged couple would get back together, but hearts shattered across the world when Anna , 41, was spotted on a dinner date with her new boyfriend, cinematographer, Michael Barrett back in September.

The pair met on the set of her new movie 'Overboard' and have so far showed no desire to hide their new relationship from eagle-eyed fans and her ex-husband.

Anna split from Chris in August but she is adamant they are still ''great friends''.

She said previously: ''We're great. He's amazing. We're great friends and we always will be. He was so kind to [write the foreword]. I decided to write a book about my life experiences and when I started, I thought, 'This will be a great journey. This is a great idea. I know what I'm doing. I'm 40, I can write a book.' [Then] it's like, 'No. What was I thinking? This is a terrible idea.'

''But what I like to think is the takeaway is that a lot of our problems tend to be universal - the idea of jealousy, loneliness, heartbreak. There's a commonality no matter what profession you're in or where you live and that's something the podcast has taught me. We all have the same stuff going on.''