This will partly depend on you and how efficient you are! ย ย
The minimum?
Allow one hour per week for viewing the video lesson and reading the pdf. Beyond that, on average I’d say once you get into writing your screenplay, ideally you want to commit one hour/day, five days a week (the target after week 3 will be 4 pages of screenplay per day/five days a week, so 20 pages per week)
Of course it’s up to you.ย If you can write more, faster, good for you!ย If you take longer, you might need longer.