Giving this thread a much needed bump.
Wonderful friend of mine Taas007 now bring us his reconstructed trailer for Once Upon a Time in The West:
https://www.youtube.com/watch?v=_fkOeJo2G_c
Original:
https://www.youtube.com/watch?v=MNGQ1hUyx-k
And his reconstructed trailer for Dawn of The Dead:
https://www.youtube.com/watch?v=PoyAFnEEa-o
Original:
https://www.youtube.com/watch?v=J7RZveZI0-M
Also, Halloween 6: The Origin of Michael Myers Producer’s Cut Trailer:
https://www.youtube.com/watch?v=sLoQ9EEfth4