Halle Berry rushed to hospital after on-set accident
An ambulance was called and Halle, 45, was rushed to LA's Cedars Sinai medical centre - but it is not yet known exactly what happened.
X17Online reports that Halle was either hit by a falling object or fell down some stairs.
The movie set was quickly shut down after the drama.
It seems life as an actress can be rather dangerous.
Just last week Kristin Chenoweth needed urgent medical attention after she was hit by a piece of lighting equipment while filming The Good Wife.
Fortunately, her injuries were believed to be minor and she was soon released from the Bellevue Hospital in Brooklyn, New York.
Kristin - who has also appeared in Glee
- later thanked fans for their support.
Her representative said: "Kristin has been released from the hospital and is home recovering. She thanks everyone for their prayers and well wishes."