There are five key stages during rehearsals; the first is the read-through, which involves all cast members reciting their lines in character. This process allows the director to modify or cut certain sections of the script to make improvements. In the first week or two, blocking should take place where it is decided how the cast will move throughout the scenes. After these processes are complete, the official rehearsals begin to help cast members memorise their lines and movements during the play. Theatre productions that incorporate dancing or singing will have an additional stage of special rehearsals, whereby choreography is practised and then incorporated into regular rehearsals. During the final weeks, dress rehearsals should occur in which costumes and props are incorporated to imitate the live production.