You activate cameraman mode with Tab. Britannicadreams have a very nice tutorial for moviemaking, and explain how to move camera in cameraman mode
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I don't know you know about http://www.sims99.com? Its a big simsmovie international site for moviemakers. And the forum have a lots of awesome stuff and help You should check it out. That site have helped me much
Just trying to help you ^^ I see you've talent for good stories and concepts I'm shoure you'll be a pretty good moviemaker if you add more advanced cameramovements and using more animations
I'm sorry, if my english is very bad. Hope you understand what I'm saying x]