Kirsten Dunst has expressed a desire to portray tragic actress Jean Seberg in a biopic.

American actress Seberg became a successful film star in France before dying of a drug overdose at the age of 40 in 1979, and Dunst believes her life story would make a fascinating movie.

She says, "I've always wanted to play Jean Seberg. She was an actress from the Midwest who moved to France and got to play Joan of Arc in the '50s.

"She's famous for being in the (classic French) movie BREATHLESS."