Brad Pitt ex-wife Jennifer Aniston isn't confident enough? "We're The Millers" star is reportedly asking for professional help in preparation for the highly anticipated Brangelina face off during George Cloone's wedding.

The event means that "We're The Millers" star will be in the same room as Angelina Jolie and ex-husband Brad Pitt, an occasion that allegedly happened only once following the controversial split in 2005.

Clooney is known to be good friends with both Brad Pitt and his ex-wife Jennifer Aniston. The "Gravity" star is set to marry his fiancée Amal Alamuddin in September.

The event will be the first time for Brad, Angelina and Jennifer to be in the same event since the 2009 Academy Awards.

"Jen is no stranger to therapy, so she decided to seek some help. At the wedding she'll have her fiancé, Justin [Theroux], there for support, but the thought of seeing Brad and Angelina is quite overwhelming," an insider revealed to British magazine Grazia.

"The therapist has been helping to build her confidence and eliminate the fear she seems to have built up about coming face-to-face with them. She has also been having hypnotherapy," the source added.

The 45-year-old actress has openly spoken in the past about her belief in therapy, saying that it's actually the easiest way to regain happiness in life after a drastic event.

However, Aniston never admitted the use of it during her controversial break-up with ex-husband Brad Pitt, allegedly over Angelina Jolie.

But, "We're The Millers' star allegedly believes that its different this time and the thought of her seeing the couple together in a small event worries her big time.

"The Oscars were one thing, but George's wedding will involve being in a smaller, far more intimate group where they won't be able to avoid one another. Jen wants to be as breezy as possible. She has been doing role plays with her confidence coach and will be as prepared as she can be," the source claimed.

It looks like Jennifer Aniston should really see a confidence counselor as her ex-husband Brad Pitt is said to be the best man in George Clooney's wedding as told by "Gravity" star's aunt, Staria to Daily Mail.

"I would say he'd choose Brad Pitt for his best man," Staria claimed. "They are good friends, I would think that's who he'd choose."

What do you think Kpopstarz readers, would it be a big deal for Brad Pitt ex-wife Jennifer Aniston to see them in George Clooney's big day?