Maybe I just hear what I want to hear, but like this short bar I noticed sounded similar between the Dune theme and a Moi Dix Mois album opening track, today I heard a Sainsbury's advert on the TV and spotted another similarity. This time with a track called Le Prince Bleu.
Different instruments, but close enough to make me think 'I have heard that before'.
Hopefully the videos will be started at the right point again if I have got he links right: