This is what imdb says:
The Vanishing (Dutch: Spoorloos) is a French/Netherlands film adaptation of the novella The Golden Egg by Tim Krabbé, released October 27, 1988. Directed by George Sluizer, the film is about a young Dutch woman named Saskia Wagter (Johanna ter Steege) who disappears from a rest stop along a highway in rural France; her lover, Rex Hofmann (Gene Bervoets), cannot accept her disappearance and embarks on an obsessive search for her spanning years.
From one of the most famous novels in world literature. Celebrated adaptations were done in French, Russian, and English. There have also been TV versions.
This one is American, was filmed on a shoe-string budget in locations around Venice and Santa Monica, California, and in the two key male roles features an actor known for stepping out with the daughter of a president and an actor who played a president of Mexico.