Tom Hardy has been listed as the most difficult to understand British actor for American audiences.
Preply did an investigation to look into subtitle usage among American film and TV viewers.
They wanted to know how many people liked to have captions on and why the trend was increasing amongst some generations.
The inquiry discovered 50 per cent of viewers now like to watch their favourite shows and movies with captions on, with Gen Z the highest with 70 cent indulging in the trend.
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Preply's survey found 61 per cent of people like to have subtitles on because they have a hard time breaking through the actors' accents.
Other reasons include muddled audio, wanting to be focused on the screen, and learn a new language.
The investigation also concluded that younger viewers were more likely to watch their programmes in public, like on public transport, and therefore might be more inclined to have subtitles on to make the experience better.
They also asked the hundreds of respondents who they had a difficult time hearing it looks like the Bane actor topped the list.
Tom Hardy seems to be the actor with the most difficult tongue to discern..
Following him was Sofia Vergara, Arnold Schwarzenegger, Sean Connery, Johnny Depp, Jackie Chan, Ozzy Osbourne, and Benedict Cumberbatch.
Interestingly, one of Hardy's biggest roles also came out on top for being the TV series that Americans have trouble understanding.
Peaky Blinders was the number one show on that list, followed by Derry Girls, Game of Thrones, Outlander and Downton Abbey.
It's unsurprising Peaky Blinders tops the list considering the Birmingham accent is a tricky one for people from outside the UK.
Funnily enough, even though the Peaky Blinders was a Brummie-based gang, only one of member of the family on the series actually hails from Birmingham, meaning the rest of the cast have had to master the accent.
Harry Kirton, 19, who plays Finn Shelby on the beloved show, is one of the only Peaky Blinders actors who come from where the cult drama is set.
He revealed that his co-stars often came to him for advice on perfecting the Brummie accent.
He explained to The Mirror: "People come to me asking if they're saying it right. I say, 'No, sorry'.
"Helen McCrory, who plays Polly Gray, does it sometimes, even though she doesn't need any tips whatsoever.
"She'll say, 'Harry, legit, does that sound okay?' Sometimes she'll just ask me to speak some lines then she'll be, 'Right, I've got it'."
Topics: Celebrity, TV and Film, Tom Hardy, Peaky Blinders
Stewart Perrie