1. I don't like this movie at all.

2. That makes two of us.
3. That makes three of us.
4. That makes four of us.

(When can we use the expressions from $2 to $4? When another person agree to it, he can say #2? Right? When another person agree to it, too, can he use #3? What is the literlal meaning of #2 - #4?)

You can use any of them. #2 means 2 people don't like it. #3 means 3 people don't like it, etc.

Sra