French hours is a term used in the film industry

Film industry

The film industry consists of the technological and commercial institutions of filmmaking: i.e. film production companies, film studios, cinematography, film production, screenwriting, pre-production, post production, film festivals, distribution; and actors, film directors and other film crew...

, when there is no break for lunch. Instead food is passed around all day long and the crew works continuously. The lack of a lunch break means that crew members and the cast has to steal moments to eat. Joel Schumacher

Joel Schumacher

Joel T. Schumacher is an American film director, screenwriter and producer.-Early life:Schumacher was born in New York City, the son of Marian and Francis Schumacher. His mother was a Swedish Jew, and his father was a Baptist from Knoxville, Tennessee, who died when Joel was four years old...

 employed French Hours in filming Phone Booth

Phone Booth (film)

Phone Booth is a 2002 American suspense-thriller film about a man who is held hostage in a telephone booth by a sniper. It stars Colin Farrell, Kiefer Sutherland, Forest Whitaker, Katie Holmes, and Radha Mitchell. The film was directed by Joel Schumacher, with music composed by Harry Gregson-Williams...

, a film completed in just ten days.