Lewis has claimed in interviews that only he, his father, and his manager have seen the entire film, but comedian and voice actor for The Simpsons, Harry Shearer,
claims to have attended a secret screening after someone“involved with the Telethon… liberated[the tape] for a weekend”.
In May 2006 a team of scientists
led by Dr. Luigi Naldini and Dr. Brian Brown from the San Raffaele Telethon Institute for Gene Therapy(HSR-TIGET)
in Milan, Italy reported a breakthrough for gene therapy in which they developed a way to prevent the immune system from rejecting a newly delivered gene.