This approach is totally normal and is pretty much expected as far as book-to-movie adaptations go.

Of course, it happened quite a lot with theHarry Potterbooks and movies.

For better or for worse,this fate is never exploredon the big screen.

Timothy Spall as Peter Pettigrew in Harry Potter in the Prisoner of Azkaban

Image via Warner Bros. Pictures

Lockhart was something of a celebrity in the Wizarding World, known for his various magical feats and adventures.

As a result, his teaching skills were terrible.

It backfires anderases Lockhart’s memory completely.

Draco talking to Crabbe and Goyle in ‘Harry Potter and the Chamber of Secrets’

Image via Warner Bros.

It’s a bit of tragic irony that isn’t exactly undeserved, but still a little sad.

He first appears inHarry Potter and the Goblet of Fireas Durmstrang arrives at Hogwarts for the Triwizard Tournament.

He is never seen again in the films, even though he appears to have survived.

Harry Potter and the Sorcerer’s Stone Movie Poster

In the books, however, Peter meets a much more violent end.

He is present when his brother, Fred (James Phelps), dies.

NEXT:10 Best Harry Potter Friendships, Ranked

Umbridge (Imelda Staunton)  smiling in Harry Potter and the Order of the Phoenix

Image via Warner Bros. Pictures

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Colin Creevey (Hugh Mitchell) smiles and holds camera in Harry Potter and the Chamber of Secrets

Image via Warner Bros. Pictures

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Gilderoy Lockhart standing proud and looking to the distance in ‘Harry Potter’

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Viktor Krum and Igor Karkaroff enter the Hogwarts Great Hall for the Triwizard Tournament

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Stan Shunpike showing a piece of paper in ‘Harry Potter and the Prisoner of Azkaban’

Image via Warner Bros. Pictures

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Peter Pettigrew (Timothy Spall) turning into a rat and waving goodbye

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George Harris as Kingsley Shacklebolt in Harry Potter

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Chris Rankin as Percy Weasley in ‘Harry Potter and the Sorcerer’s Stone’

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Buckbeak the hippogriff with pumpkins and a chain around its neck in Harry Potter and the Prisoner of Azkaban

Image via Warner Bros. Pictures

Harry Potter and the Sorcerer’s Stone

Harry Potter and the Prisoner of Azkaban

Harry Potter and the Chamber of Secrets