The major London-based film and television production company Pathe UK is researching the three bomb attacks in London in 1999, the first of which was in Brixton on 17 April.
A nail bomb planted by a far-right extremist exploded in Electric Avenue outside Iceland, injuring several people, some seriously.
Another bomb, in Soho, killed three people.
Pathe researchers said: “If you, or someone you know, was affected, please get in touch by email to firstname.lastname@example.org, we are interested in speaking to you about your experience.
“We can guarantee any conversation would be handled sensitively – our priority is representing the true story of what happened.”