Paralympian Tanni Grey-Thompson has called for a more flexible transport system for disabled people, following the success of London 2012.
More than £7 billion was spent improving the transport infrastructure ahead of the Games.
Baroness Grey-Thompson, who is also a member of the Transport for London Board, said it showed staff could cope with many more disabled people than they are allowed to under the current rules.
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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.