Continuity mistake: While camping and searching for horcruxes, the size of the trio's tent changes from location to location. Harry is standing beside it while Ron and Hermione are skipping stones across a body of water, and the tent is fairly tall. Other times, it's very short like a pup tent and they must stoop to enter.
Continuity mistake: When Harry jumps on the dragon, his hair is wet and messed, then it changes to dry and brushed and in the next angle, for a brief moment, it's back to wet and messed.
Answer: Yes. According to J.K. Rowling in interviews, the curse Voldemort had cast on the Defense Against the Dark Arts position preventing any teacher lasting more than one year, was finally broken upon his death, and from then on any instructor lasted beyond twelve months.
raywest ★
In the movies it is never mentioned that Voldemort cursed the DADA post or even applied for this position.
It is mentioned in the books.