Just want to recommend Flood, currently screening.
It is about tidal surge and freak storms, overwhelming the Thames Barrier and flooding densely populated London.

There are no famous Hollywood celebrities.
No feel-good happy-endings.
No unrealistic special effects.

And people who die, stay dead.
No unkillable saviours here.

Definitely far less popcorn-and-candy than The Day After Tomorrow.
Grittier, more brutally in-the-face,resembling the 28 ___ Later saga.

What you get is a realistic story of what happens, when the world’s possibly most advanced flood-control system initially fails miserably.

Again, I could see Singapore everywhere in this London, from CBD to subway and suburbs.

Very good timing: this movie opens here during Earth Day month, reminding us of coming consequences of global warming.

About An Empress and the Warriors:

1) Has Kelly Ch_e_n become Kelly Ch_a_n?

2) Actually, she has 2 knights, and Leon is not the one in shining armour.
That’s Donnie Yen’s foster-brother staunch ally Murong Xuehu.
Leon appears in armour briefly only twice.
Once in a flashback to renouncing his slaughtering ways.
The other in a sky-boat coffin send-off as a corpse.

But yes, he defends the princess in distress, as best he can, in his brief final days with her.

3) We found the movie pleasantly warm-hearted and big-hearted, provided one is watching without great expectations.
More meaningful than, as you’ve depicted it: the brainless Meet the Spartans.