This puzzle appeared in Microsoft Puzzle Hunt 15, whose theme was movies.
That event was modular in that each author wrote a module consisting of a few
puzzles and a metapuzzle.
The theme of my module was sequels.
The answer to some clues fit into the blanks of other clues. This links all the clues together into 8 separate chains.
The beginning and end of each chain is a U.S. airport code. Each five-letter intermediate point in the chain is a code for a U.S. airspace fix. Use gcmap.com to plot the eight routes on a single map.