How to shoot thematic photography on film and television?

1. Shoot with a slow camera at a very low frame rate, such as about ten frames, and then play at a normal speed of 25 frames.

2. When you say the characters fade in and out, it is of course post-production. When shooting, it is very important to fix the position, shoot several groups of people, and finally synthesize them offline. It's simple!

I want to show red in black and white. It must be the key principle. Only one color is displayed, and all other colors are monochrome. Post-production should be simple!