The Americanization of Emily (1964)
The Americanization of Emily is a wartime comedy/drama starring James Garner, Julie Andrews, Melvyn Douglas and James Coburn, but it's more drama than comedy, so don't expect a laugh-a-minute movie.
James Garner stars as a naval officer who falls in love with Julie Andrews, and then gets sent on a very dangerous mission. They realize that their views on the war are very different, and there are a few tense scenes before he leaves.
The movie started off a little bit slow, but it picked up nicely, and ended up being a very good movie. I expected a little better chemistry between James Garner and Julie Andrews, but their chemistry gets better as the movie goes on as well.
Overall, this is a very good movie, and I recommend seeing it.