Things You Wouldn't Know About 'The Half-Blood Prince' If You've Only Seen The Movie

List Rules
Vote up the surprising details that the film version of 'Harry Potter and the Half-Blood Prince' left out.

The film version of Harry Potter and the Half-Blood Prince is generally well-received by fans for presenting the penultimate story in the titular protagonist's story. Still, the film production took several liberties because not everything in the book could fit in to the movie's run time. As a result, several things of importance take place that movie-only fans might not know about (or readers might have forgotten).

These from-the-book facts offer a different context to view the story in, so check out the finer details and compare the differences.


  • 1
    481 VOTES

    Ron, Hermione, And Ginny All Consume Felix Felicis

    Ron, Hermione, And Ginny All Consume Felix Felicis
    Photo: Harry Potter and the Half-Blood Prince / Warner Bros. Pictures

    Harry takes only a small amount of Professor Slughorn's Felix Felicis potion when he uses it to claim Slughorn's memory of Voldemort.

    There's still quite a bit of Felix Felicis left by the story's climax, and Harry hands it to Ron, Hermione, and Ginny. Harry anticipates that Malfoy will try something when Harry and Dumbledore leave the school, and asks his friends to patrol the halls after consuming the Felix Felicis.

    Harry's plan ends up saving Ron, Hermione, and Ginny's lives because the luck they receive from the potion prevents the Death Eaters from harming them. Ginny reveals that potentially deadly curses missed them because of the protection from Felix Felicis.

    481 votes
  • 2
    466 VOTES

    Harry Witnesses Dumbledore Live Out His Worst Memory

    Harry Witnesses Dumbledore Live Out His Worst Memory
    Photo: Harry Potter and the Half-Blood Prince / Warner Bros. Pictures

    Dumbledore's consumption of Voldemort's cursed potion in the cave offers a big hint about the headmaser's past with Gellert Grindelwald, his brother Aberforth, and his sister Ariana. Dumbledore begins to spin out of control as he drinks the potion, which culminates in him asking Harry to take his life because he can't bear the visions he's seeing.

    Dumbledore keeps repeating "don't hurt them" to someone who isn't there, which seems to cause him the greatest anguish. A year later, when Harry meets Aberforth, he realizes Dumbledore was recalling the memory of Grindelwald's Cruciatus Curse on Aberforth and the resulting demise of Ariana.

    466 votes
  • 3
    295 VOTES

    Harry Indirectly Causes The Breakups Of Ron/Lavender And Ginny/Dean

    Harry Indirectly Causes The Breakups Of Ron/Lavender And Ginny/Dean
    Photo: Harry Potter and the Half-Blood Prince / Warner Bros. Pictures

    Taking Felix Felicis works to Harry's benefit even when he doesn't intend the potion to. After Harry consumes the potion and uses the Invisibility Cloak, he returns with Ron and Hermione to the Gryffindor common room, where Lavender sees them.

    Lavender assumes Ron and Hermione were in the dormitory alone because she can't see Harry, which leads to a huge argument that ends with Lavender dumping Ron.

    Harry leaves without witnessing the commotion but accidentally bumps against Ginny and Dean - she thinks Dean is being too clingy and ends things because the spark between them ends.

    Harry learns about both breakups the following morning and is inwardly happy because Ron won't be spending time with Lavender anymore, and Ginny's single status allows Harry to plot how he can woo her instead.

    295 votes
  • 4
    440 VOTES

    Malfoy Becomes Friends With Moaning Myrtle

    Malfoy Becomes Friends With Moaning Myrtle
    Photo: Harry Potter and the Chamber of Secrets / Warner Bros. Pictures

    Moaning Myrtle's final appearance in the books is in the sixth installment, where Harry and Ron come across her again in the girls' bathroom. Myrtle scolds Harry for not visiting her since Chamber of Secrets and says another boy has become her new obsession because she's his confidante.

    Harry doesn't dwell upon it again until months later when he comes across Malfoy in the same bathroom, where he sees Malfoy crying in front of Myrtle claiming he's in trouble.

    Myrtle witnesses Harry and Malfoy's duel and assumes the latter has been slain by Harry's Sectumsempra spell - it's Myrtle who summons Snape to save Malfoy's life.

    440 votes
  • 5
    354 VOTES

    Harry Comes Across The Diadem Horcrux In The Room Of Requirement

    Harry Comes Across The Diadem Horcrux In The Room Of Requirement
    Photo: Harry Potter and the Deathly Hallows - Part 2 / Warner Bros. Pictures

    Harry's first encounter with the diadem Horcrux happens right after he harms Malfoy with the Sectumsempra spell. In his panic over losing the Half-Blood Prince's book to Snape, Harry hides it in the Room of Requirement, then realizes he'll probably forget the book's location because the room is filled with so many objects left by other students.

    To mark the spot, Harry picks up what he thinks is a discolored old tiara and places it on top of a bust of a warlock where he leaves the book.

    The realization that the tiara was Ravenclaw's diadem strikes Harry over a year later when he learns that it is supposed to be a Horcrux, and that prompts him to return to the Room of Requirement during the Battle of Hogwarts.

    354 votes
  • 6
    330 VOTES

    Harry And Ginny's First Kiss Is In The Gryffindor Common Room

    Harry And Ginny's First Kiss Is In The Gryffindor Common Room
    Photo: Harry Potter and the Deathly Hallows - Part 2 / Warner Bros. Pictures

    Harry wrestles with his feelings for Ginny all year and finds it difficult to keep them at bay when he admires her skills at Quidditch.

    Harry is banned from playing Gryffindor's final Quidditch match due to his attack on Malfoy and returns to the common room expecting the team's defeat, but learns instead that Gryffindor won.

    Ginny runs toward Harry and embraces him out of the euphoria for the victory, which prompts Harry to kiss her in an act of spontaneity. The entire Gryffindor House witnesses Harry and Ginny's first kiss, which lasts long enough for the room to fall completely silent. 

    Harry sees everyone's reaction: Hermione's amused response, Dean's anger at Harry kissing his ex-girlfriend, Romilda Vane's jealousy, and Ron's shock but acceptance of Harry's feelings for Ginny.

    Ginny is receptive to Harry and the pair begin their relationship right there.

    330 votes