I found these exciting projects, too. I would ask teachers to require kids NOT SPOIL the plot -- or, at least to warn viewers of spoilers. My students could not watch any of the SPEAK trailers for this reason.
5 trailers for unique books-- great to inspire reading, or to serve as examples of the clear thinking that goes into creating a great review. My kids were fascinated, great discussion ensued as we plan our PechaKucha book reports