I saw Titanic the day it opened.
I had a friend who was a projectionist and he had to pre screen the films to make sure there were no problems with the print, so it was just four of us in the biggest theater in the house watching it and I loved it.
It is more impressive on the big screen.
I've been interested in Titanic since I was about 12 and read A Night to Remember so seeing the ship brought back to life in such exquisite detail was amazing.
James Cameron's never been the modest type but it took some serious Chutzpah to make a $200,000,000 movie in 1997, a lot of people were sure it would fail.
Yes it has a Teen romance in it, so does Romeo & Juliet and that seems to be well respected. The acting from Leo & Kate is outstanding, if I have any issues it would be with Billy Zanes over the top villainous character, Cal, he does everything but twirl his mustache.
It's long but not much longer than it actually took Titanic to sink.