Naomi Watts found Cate Blanchett's performance in Blue Jasmine so brilliant that she felt compelled to write a letter to the Oscar winner letting her know.

Watts told Wenn, "Cate Blanchett's performance was out of this world, she was just fantastic; I wrote a fan letter to her.

"Just [telling her] how brilliant she is, as always, but particularly this role . . . I laughed, I cried, I cringed, I did all things, and so did she. She was just brilliant."

Blanchett was awarded the Best Actress Oscar at this year's Academy Awards for her lead role as a troubled New York socialite in Woody Allen's acclaimed film.