She was cast as Richard Gere's mistress in the drama Hoax (2005).
In 1987 she had her English-language debut in Godard's King Lear.
She had a recurring role on the NBC drama ER in 2001, playing "Nicole".
She got the San Francisco Film Critics Award for Best Actress for her performance in the movie Before Sunset, 2004.
Delpy wrote, directed and co-starred in the 12-minute short Blah, Blah, Blah (1995).
She appeared in Killing Zoe (1994), alongside with Eric Stoltz.
Delpy's character Dominique appeared in all the segments of Kryztsztof Kieslowski's Trois couleurs/Three Colors trilogy.
Her height is 5' 6½" (1.69 m).
In the movie Before Sunset Delpy sings a song she's written herself.
In 2005 Delpy got her first Academy Award nomination for "Writing Adapted Screenplay" for her writing of the screenplay for Before Sunset.
She made her directorial debut with a short film Looking for Jimmy in 1995, which she also wrote and produced.
Delpy is not only an actor, but also an accomplished musical artist. She released a self-titled CD in 2003.
Her hobbies are cooking, writing, painting, singing, dancing, chess and mathematics.
She resides in both Paris, France and Los Angeles, USA.
Both her parents are actors. Her father is also an theatre director.
She was named one of People Magazine's "25 most beautiful" in 1995.
Julie speaks fluent French, English and Italian. She also speaks some Spanish and German.
Julie Delpy can be seen in Cinemagique. It is a short film currently shown at the Walt Disney Studios, at Disneyland Paris.
Julie Delpy: I realised I wanted to be a writer when I understood the power that you can have over the destiny of your characters. I hear the characters talking in my head and I feel that I can't think about anything else - it can be a bit scary for my boyfriend.
Julie Delpy: When I first met Godard I told him that, while I wanted the part in Détective, I really wanted to come and see him work, even if I didn't get the part
Julie Delpy: I love acting and I still want to do it, but I've such an instinct for directing, it's something that comes naturally to me. It's why I'm here on this planet.
Julie Delpy: I may move from everywhere and spend two or three years in total isolation. I like being alone a lot. I enjoy that more than anything