[movieboi]

So there's this one movie and there's a scene when a lady that has short black hair that's like alice from Resident Evil has to enter somewhere and to do it, she has to cross like a zone where from the top it just looks like grass with concrete walls, but the grass is deadly and it will kill you. So she is told that the area is very dangerous. So she starts going across it by doing all these ninja flips and moves and finally, she lands on a concrete wall with grass next to it and she bends down for balance and her face is right by the grass, and the grass comes up and it shows how it is really sharp and almost robotic grass and that it isn't grass at all, and that it will kill you.

[odinn7]

Maybe Æon Flux (2005) - IMDb ?