Don't know whether it has been mentioned earlier in this post, but I recently watched the James Bond film Skyfall.
The initial and quite long sequence takes place on top of a moving train in Istanbul as 007 and the bad guy duke it out.
The shots are amazing and it's interesting to see some non-US trains for a change of pace.
And speaking of pace, I havent finished the entire video yet, so there could be more scenes of interest.
Tomlinson Run Railroad