I watched Train Time IMAX at Bullock Texas History Museum. The photography was breath-taking.

But you could immediately tell who paid for the production, when they started lauding the PSR (Precision Scheduled Railroading). The claims about efficiency of trains were wildly over-inflated too.

But overall, the agenda was not overpowering. IMHO, Train Time wins over Living In The Age Of Airplanes, because their ostensible subject matter takes the center stage. But in the other movie, at times it's unclear if it's about airplanes or about wonders of nature.

https://www.youtube.com/watch?v=hGaICCyXQyM