Report: Angelina Jolie is "Petrified" of Megan Fox

Megan Fox has shouted it for months: I am not Angelina Jolie!

That might be the case, but a new report that states the actresses are pitted against each other for the lead role in Barbarella, the remake of a 1968 film, won't do much to dispel the comparisons between these beauties.

"This will be the first time Ange and Megan have ever faced off for the same role," a source told MSN in Canada. "Ange is really feeling the pressure. Ange knows that to win roles she has to look youthful."

It probably doesn't help Jolie's focus that her private life in reportedly in shambles. A totally unreliable tabloids claims Brangelina has separated.

While fans can compare the sexy stars below, there's little doubt Fox is on a hot streak these days. She's starring in a much-publicized movie that opens on September 18 (Jennifer's Body) and she's hosting the 35th season premiere of Saturday Night Live.

No wonder an insider said that "Megan is stunning and fast becoming a huge star. Angelina is petrified."