Complex sentence: The sequence concludes with an effects shot depicting the destruction of an industrial facility in an explosive chain reaction, during the filming of this shot, the strength of the detonations was such that a section of the AP Films Studios' roof caught fire.
Split into simpler sentences: The sequence concludes with an effects shot depicting the destruction of an industrial facility in an explosive chain reaction. During the filming of this shot, the strength of the detonations was such that a section of the AP Films Studios' roof caught fire.