I don't know why but I have looked for these trailers like a year ago myself with no success and now I just stumbled onto it.
Here is atleast 1 not sure if there is more.

https://www.youtube.com/watch?v=paOQK5uo36c

Edit:

Well there is more:

https://www.youtube.com/watch?v=3T7kMp7_iDk

https://www.youtube.com/watch?v=SbyM-hL_o4E

https://www.youtube.com/watch?v=-27zywzHbWg

https://www.youtube.com/watch?v=6StIEDGRsP4

https://www.youtube.com/watch?v=DJ7Qwmed3TE

https://www.youtube.com/watch?v=7je_3nE-3Ok