(showbizspy.com) - Hollywood couple Angelina Jolie are having trouble agreeing on names for their unborn twins.
The pair - who confirmed last week they are expecting their fifth and sixth children in August - are said to be arguing over potential names because Brad doesn't like Angelina's suggestions.
Angelina reportedly wants to name the babies Castor and Pollox after the twins of her birth sign, Gemini, but Brad has dismissed the suggestion as he doesn't want a daughter with a name "like a British cuss word".
Tomb Raider star Jolie, 32, confirmed that she and Brad were expecting twins during an interview at the Cannes Film Festival last week after her 'Kung Fu Panda' co-star Jack Black let the news slip.
Actor Dustin Hoffman later revealed the babies are due on August 19.
Angelina and Brad already have three adopted children, Maddox, six, Pax, four, and Zahara, three, and a biological daughter, Shiloh, 23 months.