They are due to begin shooting the love story By The Sea in a matter of days.And one on-set source has revealed that Angelina Jolie and Brad Pitt will be doing much more than playing husband and wife in the 'intimate character-driven drama.'According to Us Weekly, the Oscar-winning lovebirds will film 'crazy sex scenes' for By The Sea, which the 39-year-old bride-to-be is directing and writing.Angelina and her 50-year-old fiancé will reportedly shoot the steamy segments down the street from where their family is staying in Malta.The colourful European country is located in the Mediterranean Sea just 50 miles South of Sicily.'They'll be filming in Mgarr ix-Xini Bay in Gozo,' an insider told the mag in July, adding their visit would last 10 weeks.Surrounded by high rocks, the secluded pebble beach offers clear waters which make it ideal for underwater photography.'It's not a big movie, it's not an action movie,' the Maleficent star - who's ready to retire from acting - told Extra in May.'It's the kind of movie we love but aren't often cast in. It's a very experimental, independent-type film where we get to be actors together and be really raw, open, try things.'The A-listers known as 'Brangelina' haven't acted together since the 2005 assassin comedy Mr. & Mrs. Smith, which grossed $478 million at the box office.According to Brad's pal Frank Pollaro, the World War Z actor placed a self-imposed ban on shooting sex scenes with other actresses.'This is a guy who has tried not to do any sexy scenes with other women since he's met Angelina,' Pollaro told Esquire last year.'He's crazy about her, and she's the same way about him.'Pitt's last love scene was in 2008 with Cate Blanchett for The Curious Case of Benjamin Button - after his sexy roles in Thelma & Louise, Troy, Meet Joe Black, and Fight Club.Meanwhile, Jolie hasn't simulated sex since 2004 with Ethan Hawke for Taking Lives after sexy roles in Gia, Original Sin, Beyond Borders, Pushing Tin, and Foxfire.'Angelina Jolie was born to whittle men, to make them weak, and when she kisses you, you don’t know your name,' Hawke said on Watch What Happens Live last year.The Hollywood power couple were last seen Friday landing their private jet at Nice Airport alongside their six children - Maddox, 13, Pax, 10, Zahara, 9, Shiloh, 8, and twins Knox & Vivienne, 6.Brad will next play 'Wardaddy' in WWII flick Fury - due out October 17 - with Shia LaBeouf, Scott Eastwood, and Michael Peña.And Angelina's second major directorial effort, a biopic on WWII POW Louis Zamperini called Unbroken, hits theatres December 25.