Arduino multiple display product

Hello to you Arduino community. I am a very new to Arduino projects (actually just begun) and I want some opinions and suggetions. Before I start, I am sorry if this in not the proper category to post my topic.

So, I am working on a project where I need to create a product with multiple displays. To make you understand, imagine I want to create a big display made of 10x25" displays etc. This big display, will be controlled by a main Arduino unit that will play videos to the whole display as it is 1 unit only. I would be very greatfull if you could provide me some suggetions from what I will need and maybe some relative tutorials!

Thank you in advance!

To make you understand

As I understand it, you are in fantasyland.
You will need a lot more than an Arduino to do this.