This film has many great elements, but the whole things fails primarily due to overwrought dialogue that is very soap operatic with words put in character's mouths that mostly teenage girls would think of. Without John Barry's romantic score, this film would be pathetic, leaning towards hilarious.
In any film, when two characters meet and fall in love there is a certain amount of time and shared experiences that pass in the story before the love between them is credible. In this film, the love is instant, deeply romantic -- yet torrid, and lasting. Completely impossible! Having said all that, the film still provides some great military movie sequences. There are some funny bits with Halloran and his co-pilot Cimino mouthing off during their missions and briefings. And a whole military caper pulled off by Halloran (Ford) and Mr. Sallinger (Plummer) which is both exciting and easy to follow.
After a while, one realizes that Margaret Sallinger, (Down) never speaks her lines, she whispers them in a plaintive, teary voice, always on the verge of boo-hoo. This becomes grating after a while. Further, it makes the audience wonder what Halloran sees in her.
Well, the answer to what the attraction is never comes, but the noble dialogue at the end is a struggle to listen to and is a riff on the immortal Casablanca "Hill of beans/Here's lookin' at you" farewell between Rick and Ilsa. It is well that this Hanover Street high-road sign-off sequence comes last as it is the most indulgent in melodrama. Still, Ford and Plummer work so effectively to make this movie almost passable that you really have to give them credit for their commitment to their characters.
