If It's Tuesday, This Must Be Belgium is a comedy film released in 1969. The movie follows a group of American tourists as they travel through seven countries in Europe in just 18 days. The group is led by a stressed-out tour guide who must keep up with their tight schedule while also dealing with his eccentric and diverse group of travelers.
Along the way, the group encounters a variety of cultural differences and language barriers, leading to hilarious misunderstandings and mishaps. They visit famous landmarks and cities such as London, Amsterdam, Brussels, and Rome, but also have unexpected adventures in small towns and countryside areas.
The film was directed by Mel Stuart and starred a cast of recognizable actors, including Suzanne Pleshette, Ian McShane, Murray Hamilton, and Mildred Natwick. It was a box office success upon its release and became a cult classic for its humor and portrayal of the tourist experience in Europe.
If It's Tuesday, This Must Be Belgium became the inspiration for many similar travel-themed movies and TV shows, and its title has become a commonly used phrase to describe the hectic nature of modern travel.