It was the first film ever to be projected to a paying audience.
Recent findings have produced two more copies of this scene, where all the workers didn't manage to leave the factory in time. The big dog appears in them all.
This film's existence was forgotten shortly after it was screened. It was rediscovered in 1985 in Lyon, France, 90 years after it was shot.
The first film to be shot in 35mm.
Lumière catalogue no. 91.1.