Here's a story.
I get to set (director's house) and get ready to film the jailbreak scene for Macbeth 3000. I'm in costume, getting in character, going over the lines. Director has already dressed his basement (unfinished room) with "electical fence". We call the other actor again and find out he decided to go to work. Crap. Now here's where the problem starts. Me, being the writer and main character, have a lovely image of what is to happen. Unfortunately, the director refuses to postpone this scene. I refuse to butcher the script again. Unfortunately, we end up filming anyway. I'm pretty pissed, but that's ok- my character is too. Director calls over a buddy and we dress him up like a guard and have him escort me to the cell. After this point, since the script is out the window, I have no idea what I'm doing. So director rolls camera and starts shooting, telling me what to do over the camera.
Now... looking back.. it's one of the scenes where my acting is at it's best, because I look REALLY pissed off. Because I AM pissed off. Pissed off that my script is being mutilated and important comic jokes and character development are being excluded at the sake of whims... and even MORE pissed off that there is no faith in my ability and I'm being strung up like a puppet.
In the end, the scene turned out pretty good, and me and director are buddy-wuddy again... but production halted after that scene for a few months because of a quable between director and I. If we hadn't made up our differences and pressed on, the movie would've been trashed.
So I agree with Clive on the whole, unless the director desires the actor to be authentically pissed off at being used like a puppet. Cues are fine, but telling someone what to do on a consistent basis is the flaw of an ego-driven director.
It works much better if you explain the shot thoughouly in advance, rehearse, and take up issues in rehearsal. It's much more professional, and doesn't make the actor look like a tool, versus a professional doing his/her job.
That's my two cents.
Logan
PS- the scene originally had the actor playing Superdaiv (yes, Superdave Osborne reference) putting me in the cell and getting his fingers caught in the door right after Macduff (me) tries to convince him to join the good guys. In the script, Superdaiv's character relationship with Macbeth is revealed a bit more... but alas, now a guard who has no lines or comedy puts me in and nothing very exciting happens. That's just my opinion though...