Complex sentence: Luke, knowing better, moves to an open window, quotes the Captain's famous line from earlier ("What we've got here is a failure to communicate") and is immediately shot in the neck by Boss Godfrey.
Split into simpler sentences: Luke, knowing better, moves to an open window and recites the Captain's famous line, "What we've got here is a failure to communicate". Luke is immediately shot in the neck by Boss Godfrey.