Problem with Blu-ray

The Blu-ray is mostly fine, I'm just bothered by a strange white-out after Lionheart and his dead daughter are on the roof of the theatre and a blast of fire blows them off it: the screen then goes white for a couple of seconds, and then we see the inside of the burning theatre as the bodies fall into the conflagration. WTF was cut out there?

Why are you here if you haven't seen the movie yet?