Movies
Harry must fight off the dementors in this movie.
What is "Harry Potter and the Prisoner of Azkaban"?(2004)
The dementors force Harry to relive the murder of his mother, which has a profound effect on him. Because of his experiences with them, he has Professor Lupin teach him how protect himself from them.
This is the newspaper that witches and wizards read.
What is the Daily Prophet?
Harry reads Ron's paper one day at breakfast and it is The Daily Prophet.
When given to someone, it makes them confused.
What is the Confusing Concoction?
When given to someone, it makes them confused. It's unclear exactly why witches and wizards would need this because the Confundus charm exists and probably is a lot more subtle.
Grawp's half brother.
Who is Hagrid?
Hagrid's father was human and his mother was a giant. Grawp had a crush on Hermione and gave her bicycle handlebars as a present in "Harry Potter and the Order of the Phoenix".
Thomas "Tom" Marvolo Riddle
Who is Lord Voldemort?
"Knight to h3."
What is Harry Potter and the Philosopher's Stone?
(... or Sorcerer's Stone)
While Harry, Ron, and Hermione were searching for the Philosopher's Stone, they came across a giant chess board. Ron was a knight and Harry was a bishop. The trio's lives were at stake, and Harry put the king into checkmate, following on from Ron moving the knight to h3, sacrificing himself.
The morning before his first Quidditch game Harry Potter's owl delivers this.
What is a Nimbus 2000?
The morning before his first Quidditch game an owl delivers this Broom to Harry. It does not say who it is from but he looks over towards Professor McGonagall who is stroking the owl and smiling at him. Harry says, "It's a broom." Ron says, "That's not just a broom. It's a Nimbus 2000."
When drinking this potion, the person will have good luck.
What is Felix Felicis?
When drinking this potion, the person will have good luck. However long this luck lasts is related to how much they drank. We see it used multiple times in "Harry Potter and the Half-Blood Prince," when Harry manages to get some much-needed information from Horace Slughorn (and then later, when he gives it to his friends, and they seem invincible in duels).
The caretaker of Hogwarts School of Witchcraft and Wizardry.
Who is Argus Filch?
Filch usually wandered around the school corridors with his cat, Mrs Norris, trying to catch students breaking the school rules.
Harry received an invisibility cloak for Christmas from this wizard.
Dumbledore's Army was founded in this movie.
What is "Order of the Phoenix"
When Harry wants to go to the Ministry to try and free Sirius, he meets up with some of the members of Dumbledore's Army.
Harry Potter is arrested here for opening the Chamber of Secrets.
What is Hagrid's home?
Harry and Ron are in Hagrid's home when he is arrested for the opening of the Chamber of Secrets. He is suspected because he was framed for opening it the first time.
A truth-telling potion.
What is a Veritaserum?
This is a truth-telling serum. When administered, it forces the drinker to answer questions with complete honesty.
The house-elf who served the House of Black.
Who was Kreacher?
A male house-elf who served the House of Black with fanatical loyalty for most of his life, until he was left to Harry Potter upon the death of Sirius Black.
During Harry's first Quidditch match his broom begins to move erratically. This wizard is jinxing his broom.
Molly Weasley kills Bellatrix in this movie.
What is "The Deathly Hallows - Part 2"?
One of the last times that you see Molly is when she kills Bellatrix in "The Deathly Hallows - Part 2".
The name of the bank in Diagon Alley.
What is Gringotts?
Harry has a small fortune here, left to him by his parents.
This potion allows a person to take the form of someone else for one hour.
What is the Polyjuice Potion?
It allows the person to take the physical form of someone else for one hour. In the movies, their voices didn't change (aside from the Mad-Eye Moody/Barty Crouch Jr. inconsistency, but...) but in the books, everything changed entirely. Hermione did prove that it couldn't be used for animal/human transformations though, when she accidentally got stuck as a half-cat.
Teacher who was appointed as Defense Against the Dark Arts teacher in "Harry Potter and the Goblet of Fire" (Harry's fourth year at Hogwarts).
Who was Alastor "Mad-Eye" Moody?
Appointed as Defense Against the Dark Arts teacher in "Harry Potter and the Goblet of Fire" (Harry's fourth year at Hogwarts). A former Auror, he gained his nickname for the magical eye he wears to replace one he lost in the line of duty.
The Minister of Magic.
Harry, Ron, and Hermione learn of the Horcruxes in this movie.
What is "Harry Potter and the Deathly Hallows: Part 1"?
Lucius Malfoy secretly gives Tom Riddle's journal to Jinny Weasley by placing it in this.
What is a cauldron?
This potion can regrow bones overnight.
What is Skele-Gro?
It's needed in "Harry Potter and the Chamber of Secrets" when Gilderoy Lockhart attempts to fix Harry's broken arm and actually removes the bones all together. It's, unsurprisingly, a painful process, but considering this potion can literally regrow an entire arm overnight, it's pretty impressive.
The British witch who worked as the Flying instructor, Quidditch referee, and coach at Hogwarts School of Witchcraft and Wizardry.
Who is Rolanda Hooch?
The Quidditch referee during the entire series, and flying instructor for first-year students.
Harry yells "Fight back, you coward! Fight back!", to this wizard.
Who is Snape?
Towards the end of "The Half-Blood Prince", Snape, kills Dumbledore. Harry then chases Snape and delivers this line to Snape and casts the sectumsempra curse which Snape blocks. Snape then casts a spell that knocks Harry on his back, lets him know that Snape himself is the "Half-Blood Prince", kicks Harry's wand away, and leaves.