Watch closely the next time you see someone enjoying a cup of coffee in a film. Most of the time, the cup will actually be empty and certainly very rarely will you see someone actually drink from it. This is because of the nature of filmmaking. An actor might be required to do the same take eight or nine times -to actually take a sip of coffee each time would put a strain on the strongest bladders. How many of these takes are done depends on the director -Clint Eastwood has been said to be to satisfied with any shot in which the camera did not actually fall over while the notoriously difficult filmmaker Stanley Kubrick sometimes forced his actors to do the same take a hundred or more times over.