Michael Crichton was never the most creative of directors, being pretty much a point and shoot man, and a good caper movie needs a bit of visual trickery.
That said, the story is solid and the actors are clearly enjoying themselves. Particularly Sutherland, who steals every scene he's in. Lesley-Anne Down is strong too, making it all the more of a shame that she'd be consigned to TV movies and soaps in only a few years.
Connery's right there on top of that train during the extended sequence where his character must cross several carriages; it's suggested that Wayne Sleep's self-performed stunt earlier in the film (in which he scales a prison wall) was impetus for Connery, though he was experienced in such derring-do from earlier in his career.