Tottenham Hotspur fans have defied police warnings not to use the Y-word in chants.
The Metropolitan Police said they would be "on the look out" for football supporters who used the word during today's home game against West Ham at White Hart Lane.
The Spurs supporters chanted "We'll sing what we want" and "Yid Army" at this afternoon's match.
The Met said that as of 5pm, no arrests had yet been made. Officers had been speaking about the issue with fans on their way into the stadium.
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The film had formed part of a commemoration to the Choucair family, three generations of whom died in the fire.
John Nolan, who was found with cigarettes and two lighters, suffered burns on 65% of his body after being alight for around six minutes.
Known as Pily she died in January, seven months after the disaster, having suffered a stroke.