Is it possible to come up with movie recommendation based on common ratings between users ?

How would your "algorithm of common user ratings" work?

How would it work? Who would pay the $1 for each contribution and who would get the money? I live in Britain, would my contribution go to America, would I have a say it would go to the NHS? Raising money is great if it goes to the right places and used correctly, but this is a time when the rich should be helping the world (some are) not the poor trying to cover the costs of mistakes by the rich governments/corporations. 

If what you suggest resulted me in paying to write or rate something, or even use the website, I simply wouldn't. I'm out of work and chances are won't be back in work till after the lockdown and even then it will take months for things to pick up being optimistic. 

Heart is in the right place Naresh, but in reality, how would it work and would it be forced onto users?
There is nothing stopping people from making their own contributions. Provide equipment for drs and nurses or help the workers (more important than health services) that put food in the shops. If no medical facilities, only (some of) the ill die, if no food, everyone dies. There are already many charities set up where anyone can contribute, person or business and it is in the interest of everyone, more so businesses that the pandemic is over asap.

As for recommendations, may I point you to a website called Justwatch. I prefer the search engine over Amazon's very own. Find it easier to find films/TV. They have a section called "popular" which you can filter however you want. Maybe this might be a help for you.