my face have been covered tears ,after i saw the film which is called 'about time'.

用 cover with:
my face have been covered WITH tears after i saw the film called 'about time'.被动语态不是be+done 么？为什么没有 be called 而是直接 called 啊。这里宾语从句的which or what 可以省略么？为什么啊？这里called = which is called

这是过去分词修饰名词的情况。又如：
This is a story told by my mom.这是一个(被)我妈妈讲的故事