I was listed as photographing a play tonight at my college. However, I was assigned to cover a art on another part of the campus. I went to tell the director that I couldn't do it tonight and ended up speaking to another faculty member of the drama department. She told me that it was illegal to photograph performances because they copyrighted. She then went on to tell me that I could photograph the rehearsals after I pointed to the student newspaper article on the play with photographs I had taken during a rehearsal. Is it true that one can't photograph such performances even for an article?