Well I have not looked at the guesses below yet, but really I only have one good guess.
(1) When I first saw the image I was thinking of the Movie,"Butch Cassidy and the Sundance Kid", cause there are references to the hole in the wall gang, and the window in the rock wall reminded me of that.
(2) Indiana Jones Movie that was filmed on the C&TS. Just a wild guess as to what you are thinking. But, this was my favorite of the Indiana Jones movies cause it had the railroad scenes and Sean Connery....There were many funny bits in there but the funniest is the airplane that they stole from the Zeppelin and Connery shoots the tail and says"They got us son"!
Greg