This cue, from the political thriller The F-Zone, is a good example of how composers are lazy and like to recycle. The music opens with a suspenseful harp passage, which is really just the movie’s main theme re-purposed as an accompaniment. I then shamelessly recycle an earlier plot-development theme from this cue, now played by the celli and violas. The oboe player then begins the film’s love theme, which by this point the attentive audience member has heard half a dozen times.
Quite a lot of mileage with barely any new music written! (If pressed, composers will refer to this process as “motivic development”.)
(Click on the play button to stream, or the cue title to download.)