You can watch this one on Youtube for free:
"Runaway," starring Ben Johnson as the hogger, Ben Murphy, Vera Miles, Martin Milner and others.
The movie also stars the original Rio Grande Ski Train. Head end Rio Grande GP30 #3011 has somehow been relocated and repainted for the fictional "Sierra Pacific" RR, and if you look carefully you can see some early inspiration for the "Flying Southern Pacific" logo (<cough> abomination <cough>), which adorned some SP units after it was purchased by the Rio Grande's owner Philip Anschutz.
A then brand new silver painted GP35 saves the day.
There's a lot of helicopter footage of the train descending the tunnel district from Moffat Tunnel--the movie starts at the Winter Park ski area--down to Denver. Good stuff, but unfortunately of pre-4K quality.
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"Switchback" features a Rio Grande Jordan spreader which is rather pivotal (well...it's actually one of the blades which pivots) to the finale.
That footage was shot in Gore Canyon CO. It's a long, painful trip down a rock fill there. Ouch!
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I remember Under Siege 2 mostly for Brenda Bakke. Of course, she's also what I remember most about Hot Shots part deux as well.
Legs all the way up to her neck.............
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A train also plays a part in "Broken Arrow"...John Travolta, Christian Slater and...Howie Long....