Harry Potter fanatics may think they know everything about all the films but as it turns out, there are still surprising discoveries people are only just finding out today.

Potterheads have been left in shock because of the lines Dudley actually says in an iconic scene after watching the films on Netflix… this time with subtitles.

Subtitles are usually intended for people who are hard of hearing or deaf, or if the dialogue in the TV show or film was filmed in a foreign language. However there has been a boom in popularity in recent years beyond their original function, and in 2023 YouGov poll found that 61 percent of young people now watch TV with the subtitles on.

During a scene in Harry Potter and the Philosopher’s Stone, there’s a moment when the boy wizard is living in his cupboard under the stairs when Dudley comes thundering down, excited for his birthday.

He decides to give a few extra stomps to wake Harry up as he shouts: “Wake up, Potter!”

But not according to the subtitles – he actually says ‘wake up, cousin’, as he pours sawdust onto Harry’s head.

One person posted the finding to TikTok, asking what people thought the real line was.

Other social media users and Potter fans have been left just as bamboozled, flooding to the post in confusion.

One fan simply refused to believe the subtitle is correct: “It’s Potter. Ain’t no way Dudley called him cousin… cousin would imply Dudley claims him as family not as his live-in whipping boy.”

Others wholeheartedly agreed, refusing to bow down to the tyranny of the subtitles when their ears knew the truth.

“I hear Potter. I don’t know why in the subtitle said cousin,” one said, as another said: “I always thought it was Potter too.”

However some users disagreed and said they could clearly hear ‘cousin’ opposed to ‘Potter’.

“It was always cousin,” one said, while another pointed out: “It says cousin.”

What do you think Dudley said?