Teenagers in suits have been banned from buying tickets to the new Minions film which is now showing at cinemas.
The move comes after reports of rowdy behaviour from groups of teens, which has been fuelled by a new TikTok trend.
#gentleminions has taken the social media platform by storm with users sharing videos of young people dressing up in suits to watch the Minions: The Rise of Gru movie in large groups.
It may all seem like harmless fun and some cinema goers have praised the behaviour of teens at the screenings they've been to.
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But as with most things in life, and with teens in particular, it's the minority spoiling it for the majority and reports of rowdy behaviour, with youngsters shouting and throwing things, is what's led some cinemas to ban the suit-wearing groups altogether.
Problems seemed to begin in Guernsey where its only cinema was forced to cancel screenings of the film, blaming 'stunningly bad behaviour', including vandalism, throwing objects and abusing staff.
Mallard Cinema manager Daniel Phillips-Smith told the BBC: "It's been absolutely heartbreaking. We've had families who won't even go back into the screen when we've tried to sort it out, families leaving before the film has even started, and of course the children have been in tears."
Images have since appeared on social media of several Odeon cinemas displaying signs warning customers: "Due to recent disturbances following the #GentleMinions trend, any group of guests in formal attire will be refused entry for showings of Minions: The Rise of Gru."
Others have stopped online sales so that tickets can only be bought in person on the day.
The Minions movie franchise, which began with 2010's Despicable Me, follows reformed supervillain Gru and his army of small, yellow henchmen, who quickly became the subject of endless online memes.
The latest film tells Gru's origin story as an 11-year-old, struggling to break into the supervillain business.
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