Jennifer Aniston has enrolled her and fiance Justin Theroux into a "marriage boot camp".
The former Friends star is determined to make her union with the 41-year-old actor work so before they tie the knot, she signed them up to an intense three-day therapy session in Santa Monica.
"Jennifer and Justin are super excited about their big day, but she thought it would be a good idea to start married life rid of any problems," a source said.
"Justin seems to be as much a believer in the therapy as Jennifer is.
"On arrival, they had to hand over their mobile phones and undertake counselling, couple massages and screaming therapy - where you howl your feelings out at the top of your voice."
Jennifer, 43, also had to acknowledge the end of marriage to first husband Brad Pitt - with whom she split with in 2005 - in order to move on and make this relationship a success.
"It was pretty tough going and they had to address all of their deepest fears and worries," the source added to Britain's Grazia magazine.
Jennifer - who has been dating Justin for around two years - has previously spoken about having therapy, saying she found it very rewarding.
"It's true that I spent some time regularly taking part in sessions with a psychiatrist," she said.
"I find it very normal to lie on a couch every once in a while and to let your head be straightened out and your heart."