Cops pulled over the 48-year-old actress on Sunset Blvd. on the night before Halloween. During the stop, cops told TMZ they "immediately detected an odor of alcoholic beverages." They told us De Mornay was asked to perform several field sobriety tests, which she failed.
Police say her blood alcohol level was .09, just over the legal limit. She was cited and released from the Beverly Hills police station.
De Mornay will be arraigned on December 31, but she does not have to appear.