And now I have an excellent mental image of the Duke of Weselton playing with plastic dinosaurs. Olaf would also be there, but the poor guy doesn't really have the waist articulation to bend down and move toys around the floor.

I thought that Elsa was going evil. I don't mean that as a bad thing, and in fact when I was watching I thought something along the lines of "Wow. This is probably the most well-structured and natural descent into villainy that I've ever seen in a movie." I knew that if she did, it wouldn't be permanent, both due to Disney law and the culmination of her character arc, but I'm still convinced that if she hadn't hit Anna in the heart and nearly killed her, Elsa would've at least temporarily turned evil. All the steps she took getting to that point, from the personal tragedies, to her sudden decision to not only accept but embrace what makes her unique after a life of repressing herself out of fear, to the path that had been set up for her and she had reluctantly prepared for all her life seemingly crashing down, to her decision to discard her old life and build herself a new identity, all has the makings of a really good villain origin story. It could also be backstory for a future protagonist, but we already had protagonists in Anna and Kristoff. (Maybe Elsa will be the central character in the now-pretty-much-inevitable sequel. That should be fun.)
It was due to Anna's idealism, Elsa's still-intact feelings toward her sister, and an unexpected revelation coupled with the onrush of a second psychological break that made Elsa realize how dangerous she was, and that was a turning point in her character. It also could very easily not have happened.

Elsa was already experiencing some self-denial, claiming that the cold had never bothered her when in fact, the cold, in the form of her powers, was originally the source of many of her problems. To break that down, she willingly discards and avoids considering important information about her past to become more free from her old troubles in the future. There's a slow but final motion from something like that to making decisions that your older self might not have approved of. Evil's not just a switch; there's not just one event that'll suddenly set someone off. It creeps up on you, and you don't notice that you've suddenly gone against the ideals and morals of others because you've come to believe in something new. They say it's wrong? Maybe they see it that way, but they're also the same people who were giving you problems in the past, right? If it hadn't been for them, you'd be as happy as you are now back then. They made you live in fear, and you know that that's wrong. So, no, you're not wrong. They're wrong. And suddenly, you have a hard time turning back.

Plus, just listen to those lyrics. Like, actually listen to them. "My power flurries through the air into the ground"? "I am one with the wind and sky"? "No right, no wrong, no rules for me"? That is straight-up unimpeachable villainous posturing.

And there were no mentions of Arendelle at all. Everything seems to be set up in similar ways, but with several distinct differences in the way the two worlds operated. The latter might be due in part to the change in tone between the two movies, but I didn't see any hints that they were set in the same universe. Also, I'm not sure what establishing that would've done to serve the plot. One of the many things I enjoyed about Frozen was that pretty much everything that was brought up had a place in the story at some time or other, and that tightness of narrative might have been compromised if there were diversions from the story to connect it to another movie.

Not that I'm saying I'm opposed to it, mind you. Heck, if the two stories did take place in one universe, we can have a crossover sequel between those two, and maybe some other recent Disney animated movie added in for good measure and extra plot elements. Avengers-style crossover between a set of structurally similar but up-to-that-point unconnected movies? Count me in. I even came up with an admittedly-incomplete idea of what the impetus for their crossover would be, but I found out in a bit of background research that Flynn didn't actually have a mysterious between-scenes recovery after getting stabbed in the kidney and depowering the only thing in range that could heal him, and my video store must have given me a DVD that was missing a crucial scene for some inexplicable reason. That fills that plot hole, and restores a little of my good feeling toward Tangled's storytelling that the skip had made me lose, but it also casts into doubt every DVD that I've ever gotten from there. Was there actually an explanation for how Bruce Wayne got back to Gotham from Bane's prison in the Middle East in the Dark Knight Rises, or the depowered Superman got back from the North Pole in Superman II, and the DVDs just cut those out, too? I guess I'll never know, or at least never until I watch copies of those movies that I can guarantee are undamaged.

There goes my planned story featuring Flynn fighting back-to-back with his own Life Model Decoy-equivalent. I'm only half kidding, by the way. My story idea may have been really dumb.