This may or may not work for you... but,
We have a good relationship with several of the area chain theatres. If one is missing a DTS disk, they can get a copy from someone else's theatre. We've swapped popcorn, oil, even CO2 on occasion, and I once went into a Regal house and changed a lamp for them.
When I was mainly sub-run, I never had trouble getting trailers. The studios stuff the cans with them when they send them to the first-run houses... and those guys don't know what to do with all of them. Get in good with the manager of a 10+ plex and you're set.
Of course, none of those trailers go back with the print... that's just how it seems to work.
(edit) Hmmmm... looks like I already said this, back in December...ummmmm, 2 years ago? Sorry!
[This message has been edited by rodeojack (edited September 16, 2006).]