Here is the link to the train crash in the movie http://www.youtube.com/watch?v=HmsxtErEVrw
Hope you can find out what engine it is.
One of the comments on the film was that it had to be a French Loco since the film was done in France and during the war the action itself took place there. Hope this helps you Dave the "Coal"
The trailer shows it to be loco "230 B 711", if I read it correctly. The SNCF 230B class is a 4-6-0, which is what the loco appears to be. http://orion.math.iastate.edu/jdhsmith/term/slfrsncf.htm has a list of SNCF steam locos and a little data on the 230B class.
One of the movie sites notes a blooper in that some of the steam locos in the film are post WWII.
Looking at a still on the U tube just before the crash ..230B you can see two tail rods below the smokebox and out side cylinders as well so: a 4 cylinder compound,, the "Crampton" steam pipes to the outside High pressure cylinders are there[but look to be without casings. insulation is visible.] cab style and front window shades . 6wheel tender..and two reach rods to the independent high and low pressure valve gears, on the left hand side. most likely a "Est" 4-6-0 mixed traffic built 1901-1912 and in her very final days in 1964!
The loco it hits is avery! old 0-6-0 dating from the 1880s outside cylinders and Stephenson gear as well..France and spain had these in numbers and some lasted a very long time, pottering about in yards.
The Prussian P8 was a 2 cylinder Simple designed by Garbe. the Est where 4 cylinder Compunds designed by Salomon, but designed for similar duties..two more diffrent designs would be hard to find! if the chart state that, then its an error.