It is always a sign of a well written script when it goes in quickly. It is much harder to learn badly written dialogue than it is well written stuff. I like to be over familiar with the script by the time I get into rehearsal. I won' t be off script; I don' t tend to do that. Usually during the process of rehearsal is enough for it go in and then I have to go back and check the detail and check I' m not learning it wrong, if you like. One thing I do like to do for that reason, relatively early on, is to write them out, which some people really baulk at, they don' t like that idea. But I write up a cue sheet.