Actress Angelina Jolie is battling with Megan Fox for a role in the new remake of Barbarella.
Jolie, 34, is reportedly feeling under threat from the 23-year-old.
The pair both want to star in the remake of the 1968 film and are both auditioning for the lead role.
A source revealed: "This will be the first time Ange and Megan have ever faced off for the same role.
"Ange is really feeling the pressure. Ange knows that to win roles she has to look youthful."
The insider added: "Megan is stunning and fast becoming a huge star. Angelina is petrified."