Paint a base color and allow it to dry.
Light green textured wall paint.
A light texture can help minimize minor flaws in your drywall but will not cover anything larger than slight incongruities in the surface.
You can probably lit good enough from both sides to eliminate the shadows on the texture produced by the other light.
Choose either a latex or oil based paint with a low maintenance finish.
But as on a green screen you need to maximize the focusing range probably you will still have some texture visible.
In reality you need to test.
There are plenty of ways to texture your paint.
Follow this step by step tutorial to make light work of painting the finicky surface of a textured wall.
The effects on the room s sound and light will be greater as even small amounts of texture can break up sound and light waves that hit the walls.
You do not need to paint in green before making these tests.
Prepare and clean the walls as you normally would for painting.
Try both heavy splatters and light splatters and when you are confident in the spray pattern begin to apply it to the walls.
After drying prime and paint the textured walls.
This light mossy green wall looks more like a work of art and feels fully integrated into the space instead of just blending in as a backdrop.