The stunning actress - who is reported to be portraying the curvy blonde bombshell in an upcoming epic based on a book by Andrew O`Hagan- admits she knows nothing about the film, and is unsure whether she would even be suitable for the part.
She told BANG Showbiz: "This is a new rumour. I haven`t heard a thing about it. I don`t think. I don`t know if I`d be the best person to play her."
Author Andrew, who wrote the book `The Life and Opinions of Maf The Dog, and Of His Friend MarilynMonroe`, confirmed the 35-year-old actress would be starring alongside Hollywood legend George Clooney in the film, where he is set to portray Frank Sinatra.
However, Angelina claims she needs to have a chat with George - who is close pals with her long-term lover Brad Pitt - first.
She laughed: "I don`t know though, I haven`t talked to George about it yet!"
Angelina was discussing her latest roles at the gala premiere of `Salt` at the Empire Cinema in London`s Leicester Square on 16.07.10.
The screen beauty - who raises six children with Brad - portrays spy Evelyn Salt in the movie, and insisted on taking on most of the dangerous stunt scenes herself.
She added: "It was a hell of a shoot. It was very exhausting but well worth it."