|Stanley Kubrick:||There's really a limit to what you can do with rehearsals. They're very useful, of course, but I find that you can't rehearse effectively unless you have the physical reality of the set to work with. Unfortunately, sets are practically never ready until the last moment before you start shooting, and this significantly cuts down on your rehearsal time. Some actors, of course, need rehearsals more than others. Actors are essentially emotion-producing instruments, and some are always tuned and ready while others will reach a fantastic pitch on one take and never equal it again, no matter how hard they try. In Strangelove, for example, George Scott could do his scenes equally well take after take, whereas Peter Sellers was always incredibly good on one take, which was never equaled.