Leonardo Di Caprio 'slasher' to stand trial
Leonardo Di Caprio Aretha Wilson, 40, allegedly lunged at the Inception star outside a party in Hollywood in June 2005.
She is said to have cut his neck and ear - causing the actor to need 18 stitches.
"There was an extreme amount of blood," DiCaprio's producer pal Eustace Hicks testified.
But Freddy Sayegh, a lawyer for Wilson, insisted that DiCaprio menaced Wilson - who faces one count of assault with a deadly weapon.
Wilson, who was extradited after five years on the run, faces seven years if convicted.
Los Angeles Superior Court Judge Edmund Willcox Clarke, who saw photographs of the star's injuries that have not been made public, said he did not consider them "trivial or moderate".
Wilson allegedly sneaked into a party hosted by Paris Hilton's former boyfriend, Rick Salomon.
According to police, she thought DiCaprio was a former boyfriend and attacked him with a bottle.
Wilson has remained in jail since pleading not guilty to the charge earlier this month after failing to secure bail of $150,000 USD.
She is due in court again on September 9.