This is a project I started as part of the Assembling Bricksburg topic in the LEGO Town forum. @lostdriveway brought it up as something to re-create from the movie and @Electricsteam suggested I post it here in the train forum. So, now that it's done, here it is:
As far as I can tell, none of the cars on this train use bogies. Even if they did have bogies, the details on the side of the cars would prevent any of them from turning. All of the buffers are brick built.
I'll post more pics soon of the other side of the engine and the other cars--all except for the caboose--the movie never shows it clearly and I can't find any other good references for it.