If you dream of the theater, then such dream foretells about your wish to be surrounded by people. Perhaps you are the person who likes to be companioned. Beware of the artists as they reflect of who you are and what kind of features you are carrying. The dream of the theatre could indicate the new part you are going to take. Probably this is the time of your life, where you get to know more about yourself and how adaptive you are. If you were having fun at the theatre, then it means that you are happy with the results you are achieving in your waking life. Probably you chose the right conception to reach the things you want.
Read more about dreaming of Theater in other dream meanings interpretations.