The Natural Born Killers star was travelling home from a promotional event for her new film Conviction when a Honda slammed into the side of her Lincoln Town Car at an intersection in Burbank.
She was admitted to a nearby medical centre where she was treated for minor injuries and discharged hours later.
A friend took to the star's Twitter.com page on Thursday (07Oct10) to reassure anxious fans that the actress is okay following the accident.
The post states, "I'm speaking on Juliette's behalf. She thanks you for all the love and well wishes. She's okay, resting at home. Thank you for the love!"
Cops have launched an investigation into the hit-and-run after the driver of the Honda sped off after the incident.