Serviio

These are on a unique page http://www.youtube.com/trailers which is not accessable by a groovy.

The closest one can come is the api link:
https://gdata.youtube.com/feeds/api/charts/trailers/most_recent?region=US&v=2 which are those on the right side of the above page.

You can also try https://gdata.youtube.com/feeds/api/charts/trailers/most_popular?region=US&v=2 which represent those over a longer period