Hello friends!

First of all, thanks for your time!

Could you help me with the title of a movie? I know that my clues are very vague!

I just remember a funeral and people who decide that they are not going to show any kind of grief or sadness for the deceased, because that would be a bad move for their cause -yes, there was some political issue: a revolution,a riot, a strike a demostration or something like that, and its repression concluded killing some people.

Many thanks!