I believe that this was one of the worst scenes in ironically one of the best movie's ever, Titanic.
In this ending scene after the Titanic sinks both main characters grab onto a floating raft, hoping to find a lifeline or help as they in danger of being stranded in the ocean.
My alternate scene actually kind of changes the ending which probably isn't a very good thing for most but I do have an explanation. I was very young when i watched the Titanic. I watched with a couple of family members but what i remember clearly is asking my cousin, "Will anyone die." This was an important question because i had heard it was a tragic movie but I wanted to prepare myself. I kidd you not that up until Jack was sinking into the depths of the murky water and Rose is blowing the whistle to get the attention of a near boat I'm screaming at my cousin, "IS HE GOING TO DIE? IS HE GOING TO DIE?"until finally, "OMG, YOU SAID HE WASN'T GOING TO DIE YOUR SUCH A LIAR!" I also imagine that here is where i may have started sobbing.
With all of that said I thought that since the raft was MASSIVE (honestly take another look at the movie) Jack could get onto the raft first with Rose getting on top of him to use their body heat to warm up. I also considered having them switch routinely but I ended up with this solution.
Jack and Rose beside the raft.
Jack climbs on first and helps Rose to get on the raft.
Jack: I'll help you up
Its kind of an intimate situation as they try to balance their bodies on the raft with Jack trying to keep them balanced.
A close up of Rose on top of Jack.
Rose: "Not the most romantic of situations but at least we'll create body heat"