Jolie, 38, is said to have given strict instructions for Jonah Hill, Quentin Tarantino, Philip Saymour Hoffman and George Clooney to control their liquor intake at the nuptials, reported Sun online.
"Angelina wants the whole affair to be very civilised and is concerned about the habits of some of Brad's more raucous friends. She thinks that if Jonah and Quentin come, they'll hit the bar early on and cause a commotion," a source said.
The couple are planning a lavish affair to exchange vows in the next few months.
"Angelina is keen for her brother James to have the gig, while Brad thinks his brother Doug should take on the role," the source added.