I noticed the same thing; I remembered in watching Hell's Angels a while ago that the zeppelin was a burnt red orange when it tumbled burning to the ground. Yesterday's version showed it as bluish thru the entire sequence. I also didn't remember any intermission sequences in the versions I saw years ago.
Does anyone know what gives?
I have two copies of Hell's Angels; one is from AMC from around 1990 and the other is from a TCM broadcast from about 2004. I'll have to check these two copies to see if I'm correct in these differences.