Complex sentence: While Hallyday was a fan of his films, To had never heard of Hallyday, and the producers gave him footage from his concert performances along with a copy of the 2002 French film "The Man on the Train", in which Hallyday co-starred.
Split into simpler sentences: While Hallyday was a fan of his films, To had never heard of Hallyday. The producers gave him footage from his concert performances along with a copy of the 2002 French film "The Man on the Train", in which Hallyday co-starred.