Audio problem: In the theatrical cut only, there is a scene where Willow goes into Howie's room and wakes him in the morning. She is heard to say something like "Wake up Sergeant", but her lips do not move.
Audio problem: On his way to check out the school, the Sarge witnesses a group of kids involved in the Maypole song. During the song, a kid with a mouth harp is strumming it every single time he's in frame, but that included large parts when the instrument is in fact not part of the diegetic song.
Answer: He would likely die from the heat or smoke inhalation long before the wood would deteriorate enough for him to fall out. The film also makes a point to show that Howie has given up trying to fight the villagers and has accepted his fate, so even if he could have forced his way out he no longer had the will to do so.
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