Not onscreen, but the damage to the school was presumably repaired by the time of the "19 years later..." epilogue.
harry potter and the goblet of fire
harry is in his 5th year
Griffindor, Hufflepuff, Slitherin, Ravenclaw
Severus Snape
David Bradley play Filch the caretaker at Hogwarts in Harry Potter and the Philosopher's Stone.
Yes During the Battle Of Hogwarts giant spiders are used to fight against Harry Potter and his friends.
Charity Burbage(The Muggle Studies teacher from Hogwarts).
In one of the very first scenes of the movie of Harry Potter # 5 (AKA: Harry Potter and the Order of Phoenix) there is a singing scene at Hogwarts ( revised version of boil and bubble)
34 (17 years after the battle of Hogwarts)
30 minutes. Hope this helped! 
Harry Potter and the Deathly Hallows Part 1 isn't set at Hogwarts and Professor McGonagall was still teaching there. She appears in the second half of the movie when Harry, Ron and Hermione go back to Hogwarts.
nine the movie and the endThis is more of a question that asks an opinion.If you want to know mine, it is the scene when Harry Potter finally defeats Voldemort in the Great Hall at Hogwarts in the seventh Harry Potter book, Harry Potter and the Deathly Hallows.