Your mistake is that you tried to control it actively! You are a beginner. Don't expect to just go ahead and imagine that someone will do something, the only thing you will do is destabilize your dream.
Try to control your dream passively. If you want someone to do something don't just imagine him doing that. Ask him to do that.
If you want something to move or you want to have super natural powers ask for them. The subconscious will give you what you want. Just ask for that and you will get what you want.