This film is well cast and performed throughout, with special mention of Robert Powell, John Mills, and David Warner. Made in color, it features beautiful scenery, especially the train trip to Scotland and Hannay's flight over the moors. It has fine period detail and costumes, the equal of anything in Merchant-Ivory films. And it has a lush, romantic score that swept me right along into the film.
The film does reference Hitchcock in a number of ways, most obviously in the plane search for Hannay, which recalls the plane attacking Cary Grant in "North by Northwest." And the climax that takes place on the face of Big Ben is exactly the sort of thing Hitchcock might have done, what with his fondness for using famous landmarks in his films.
The suspenseful climax is as good as anything Hitchcock ever did. But throughout, the film has good suspense. Hannay's escape from the train on the bridge here is better than the Hitchcock scene. And the terrorists' activities as shown here are very modern in that they are ruthless killers.
The people who were involved in making this film have nothing to apologize for. It's a fine film, and it's too bad that it has been overshadowed by the Hitchcock version. Don't miss this one.