Dawn Wells, who starred as Mary Ann on the television show "Gilligan's Island," was sentenced to serve six months probation for having marijuana in her car, US media reported today.

Wells was also sentenced to five days in jail and fined US$410.50 as a result of her arrest last fall in eastern Idaho.

Wells, 69, founder of the Idaho Film and Television Institute and organizer of the region's annual family movie festival, was stopped on Oct. 18, by Teton County sheriff's Deputy Joseph Gutierrez after he noticed her swerve and repeatedly speed up and slow down.

She was driving home at the time after a surprise birthday party.

When asked about the smell of marijuana in the car, Wells said she'd just given a ride to three hitchhikers and had dropped them off when they began smoking something.

Gutierrez found half-smoked joints and two small cases used to store marijuana inside her vehicle. Then she failed a sobriety test, he said.

Wells pleaded guilty as part of a deal last month to one count of reckless driving.

Wells' lawyer said that a friend of Wells testified that he'd left a small amount of marijuana in the vehicle after using it that day, and that Wells was unaware of it.

Under a plea agreement, three misdemeanor counts were dropped.