No. 55, "La Roue," or "The Wheel," was on TCM a weekend or two ago. Idly recorded it when I saw it was a silent movie about a locomotive engineer. Go to watch later, and Ben Mankiewicz says in the intro it's four and a half hours (director's first cut was about nine hours). Yikes. Watched it over a few days. Looks like some real trains in the filming, plus a couple scenes that could be with models. Seemed like a pretty sharp curve. But it could just be perspective making it seem that way.
Seen probably 15 or 20 of them, though some a long time ago. EDIT: on second tally (taking more time), I believe it's 28.
David