The photograph in Helen's hands changes size between shots and from the front it has pinked edges but not from the back. Her hands change position as well.
Captain Rowland Hughes is shown with three stripes on his uniform, and First Officer Dean London with two stripes on his uniform. Airline Captains have FOUR stripes and F/Os have THREE stripes on their uniform(s). Flight Engineers (which, for the most part, don't exist anymore - due to advancement in technology in modern aircraft) have two stripes on their uniform.
The cop typing the missing persons report types the victim's first then last name although the form instructs to type it last name first.