A driver involved in a head-on crash that killed "A Christmas Story" director Bob Clark and his son pleaded no contest Wednesday to two counts of gross vehicular manslaughter while intoxicated.

Hector Velazquez-Nava, a 24-year-old Mexican national, entered his plea before Superior Court Judge Keith Schwartz and faces up to six years in state prison when he is sentenced Sept. 27.

Prosecutors said Velazquez-Nava was drunk when he steered his sport utility vehicle into the wrong lane of Pacific Coast Highway in April, striking Clark's sedan. The filmmaker and his son, Ariel Hanrath-Clark, 22, died at the scene.

Authorities said Velazquez-Nava had a blood-alcohol level of 0.24 percent, three times the 0.08 percent legal limit for driving. Both he and his passenger were treated for minor injuries after the crash.