Now for some cultural lessons with Disney's Cinderella, and mainly because it's just had a live action makeover.

I shouldn't need to tell this story but for the uninformed, Cinderella is about a downtrodden girl who gets a chance to go to the ball with the help of her Fairy Godmother. In this Disney version, it maintains the setting depicted by Charles Perrault and includes it's own whimsical charm through the talking mice and the beautiful animation of the famous Dress Transformation scene, a personal favorite of Walt Disney himself.
And 65 years later, the live action version gives us more of the same but many feel that Cinderella is outdated due to the fact that it paints an unrealistic depiction of romance and doesn't speak with the same Quasi-Feminist views that Elsa of Frozen championed. Well lets stop this crap right now.
If the 1950s film did anything wrong, it was the lack of character development for the Prince, the screen time is taken up more by the mice than any other character including Cinderella herself and finally there could've been more story from all sides, there's enough interesting characters to pad the story a bit and actually give the Prince some actual background. A lot of criticism is still aimed at Cinderella and it plagues the 2015 live action version as well seeing as every female lead is expected to act like Elsa but it's not the end of the world if the lead female doesn't.
1. There's not really much you can change from Cinderella.
2. Attempting to make it like Frozen would seem like a forced decision and will likely ruin it.
As popular as Frozen is, girls are still very diverse in their interests, more so than boys, for every girl who likes Elsa, there's a girl who likes Cinderella but you maybe surprised by the reasons why.
For Elsa it's her ability to accept her faults as part of who she is and the importance of reconnecting to your family.
For Cinderella it's karma giving her a reward for tolerating the hardships that life throws at you with the kindest of hearts and trust me that's a more valuable life lesson, but there are mundane reasons as well such as good singing voices and having a pimping dress, so don't expect a revolution.
Despite the direction Hollywood thinks the female lead roles should go, there is still a place for the traditional heroine even if the film is 65 years old, it shows that a timeless story can still entertain a modern audience.