The Final Countdown!
I saw this movie when it first came out when I was in third grade (1980) and was already obsessed with WWII. I thought it was a very cool movie! Flash forward about 27 years. A few years ago I got it from Netflix because I hadn't seen it in so long. Well, I was sorely disappointed! The plot did not age well with a quarter century! Let's just say that by some freak happenstance, you were shot back in time just before Pearl Harbor (that is the premise of the movie; the aircraft carrier Nimitz goes back in time.) I certainly wouldn't even be tempted to interfere with the Japanese attack. For as long as I could, I would try to get back home and not jack-up the time line I had grown accustomed with. Apparently that doesn't bother those on the Nimitz and so they decide to thwart the attack. And just as they do. . . Oh! Never mind! there's the vortex that sent us here, let's go!
I probably shouldn't have tried to watch it again, and it would have always been a really cool movie in my memory!