What was really dumb about that was that the actual full size half-hull in Mexico was only like 90% the length of the actual ship. But the cg model was 100% size. So they had to do (IMO needless) correction matching the two together. Jimmy: you’re spending more money that had ever been spent on a film! Splurge for the other 10%!
I don’t think they had time. What with running from the police, and driving over a hydrant. 
Well, not the first time. But every time since I bought the soundtrack. Sometimes, just from listening to the soundtrack.
In answer to your post, it moves me for the tragedy, sure, but fictional characters dying also can move me, if they are characters you have come to care about, See: Spock. I get sad for both real and fictional characters and their story. How we face death is as important as how we face life, and since I haven’t been near death yet, I can only live vicariously through real stories and well crafted fiction.
And this is fighting against Cameron’s biases. As I said, he really hates the rich people on the ship. He chose to make Benjamin Guggenheim show panic when the water was coming in. I took that to mean, “look the rich: for all their nobility, are just babies crying for their mommies at the face of death.” I’m like, FU Cameron, you’d be the same. In some ways, Jack is a jerk, yet he’s the hero, because Cameron likes people like him. Maybe he sees himself in Jack.
Rose cheats on her fiance, and she’s the hero. Cameron cheats on his wife…hero, at least in his mind?
If you over analyze the film, you start to have trouble with it. If you take it at face value, “people are people” and this is just their story and not some treatise on class, it’s an awesome emotional film of a famous tragedy.
I love the ending when Rose is reunited with all the people she knew on the ship. It’s happy that all the pain is gone, and people can enjoy their afterlife.
But, you may ask, where’s her husband, the father of her children? “Hey I’m right here! Who’s that kid?” I don’t know where he is, and Cameron never bothered to say.
I’d like to think that scene is just the introduction to the afterlife. They aren’t all staying there forever (that would be hell!). It makes the transition easy. Like Heimdall welcoming spoiler alert into Valhalla in the T:L&T post credits scene. After the party, Rose gets to see her husband, mom, dad…etc.
eta: I agree with Rose dropping the stone in the ocean. It’s hers! Fuck Brock and his grave robbing ass. And I like how she died right where Jack did.