I just thought of another one and missed the deadline to add it to my last post.
The Private Navy of Sgt. O’Farrell - Bob Hope (possibly his worst comedy)
OK, one more, it just came to me.
South Sea Woman - Burt Lancaster and Chuck Conners
and I suppose;
Anchors Aweigh could qualify since the ship they get off of at the beginning of the film is in the Pacific, and if you want to stretch it a bit more since California touches the Pacific Hollywood Canteen might qualify.
Yep, you’re right…he’s permanently horizontal these days. 
Follow the Fleet with Fred and Ginger, plus Lucille Ball and Harriet Hilliard, later Harriet Nelson. Plenty of clever banter, to say nothing of *Let’s Face the Music and Dance. *
Since this has gone way off the OP, let me add in a terribly maligned and underrated wacky WWII comedy. I lOVE 1941, and dammit, I don’t care who knows it!
And if you remember the Japanese sub was definitely in the Pacific as was the Farris wheel after a while.
Do you mean a Ferris wheel or a Ferrous wheel? 
That makes two of us, brother. I’ve listened to the commentary on 1941, and Spielberg moans about his film being a ‘failure’. Well, yeah; it was. But he should have said, ‘Yeah, it was a failure at the boxoffice; but it’s a great film and I’m proud of it! Money isn’t everything.’ It’s a hilarious picture with a great soundtrack and a lot of memorable lines and scenes. I keep thinking I need to watch it again, if I can find the time.
I “like” the film. It’s OK. I think it could have been a great film, but in my mind, it falls short of that category. I think Spielberg needed to rein in a handful of his actors (Belushi and Williams come immediately to mind) a bit for it to have been really great. When the film came out, I so wanted it to work, but it didn’t quite. Personal opinion, of course.
It was the whole Ackroyd tank subplot that didn’t work for me. Other parts were excellent; Slim Pickens on the sub, Ned Beatty vs the sub, Christopher Lee vs the sub captain…
I’m seeing a theme here.