Sure, with lucid dreaming. A lot of writers and directors lucid dream, which is how they come up with new ideas. You can do a few things to try to force your subconscious mind into lucid dreams while you are asleep.
1. Raise your hand and stare at it for a couple of seconds. Do this 10-20 times per day, when you can remember. Apparently, the hand in dreams looks very different from reality. if you continue to do this daily, it is more likely that you will raise your hand in your dreams, and when you know you are dreaming, you can alter your state.
2. Ask yourself, "Am I dreaming" 10-20 times per day. Against this is another hint for the subconscious mind to join in with the fun. When you can ask yourself this in a dream, and you truly are dreaming, just think of the fun your mind could conjure within.
Practice makes perfect with any method of learning. Good luck!