Could they have used any worse of quality of video?
The flash, could it be lighting of shattering Windows? That buldge? Could it be just an odd angle? A lot of planes do have designed buldges and shapes on the under side... a 747, 777, and 767 all do for instance.... Also, a lot of planes have external fuel tanks - both under wings and some under the belly. Southwest does this more than any others...