Goosebumps 24 - Phantom of the Auditorium

Brooke and Zeke are aspiring thespians who get the roles of Esmerelda and the Phantom respectively in their school play. During a rehearsal, a masked man comes swooping down from the catwalk and disappears down the trap door. When Zeke is accused of being the masked man, he is kicked out of the play, but the masked man continues to make appearances.