Last night was our boys' night out...to watch a boy's movie,Terminator:Salvation.

问题描述:

Last night was our boys' night out...to watch a boy's movie,Terminator:Salvation.

直译就行:
昨晚是我们男孩子外出娱乐的晚上,
看了一场适合男孩子看的电影--终结者:救赎
其中"night out"是指美国学生之类的每周不用工作学习的夜晚
剩下也就是句式的问题了