There are two accidents occurred during the ballet show. The backdrop didn't functioned well in the 2nd act so we need to wait almost for 5-10 mins. At the 3nd act, the terrace over the backdrop was suddenly falling down, hence the ballet dancer (Juliet) was dropping from the terrace to the floor. All of the audience were scared. We worried about the status of the dancer. We had been waiting almost in 15 mins without any announcement. During that time, we wondered whether we should be leaving or keep waiting. After waiting for 5 mins more, the curtain of the stage was suddenly opened and the dancer standing on stage. We then continue to watching the show Fortunately the dancer didn't injured.