First, set things up and click the button to Generate Movie Prompt. Then, click 'Next Turn'. After two players go, the game begins to attempt image generation.
Pick up to 3 different models for most fun. BUT many can be finicky (work some times of day, then not others), so might be better to choose same 2 or 1 across drop-downs.
Try 'Next Turn' again if generation hangs.
Can change models and click 'Next Turn'; can try again until one works.
Recently, stable diffusion v2.1/v1.4 and midjourney models have worked best.