u/throaway-2001

Hello! i’m a recently graduated filmmaker so i know absolutely nothing about Photoshop editing but im trying to learn.
Long story short; I have some pictures I took on b&w film and i want to edit them so i have this kind of “silent era tinted film look” for a pitch im trying to apply, and i haven’t found any tutorial to help me trully achieve this look, most end up coloring the highlights instead of the shadows which is how I heard you can get this look, so please help.
Also is there a way i can keep the picture in b&w but only do this color correction on certain sections? Like idk a square with the edit and the rest of the image in its original b&w?
Im really sorry for my english, im chilean and i’ve been trully struggling to achieve this