A spokesman for London Fire Brigade has confirmed that the blaze at a chemical processing plant in Greenwich is under control.
Small pockets of flames remain on site and fire fighters will be on site for most of the day to dampen embers.
The spokesman said that smoke over Greenwich has now dispersed and residents no longer need to keep their windows closed.
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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.