directed by

directed by 由谁导演。
produced by 由谁制片。
story by 由谁编剧。

你这是电演里面的吧

directed by
导演/由谁导的
produced by
制片人/由谁制作的
story by
编剧

by在这儿是个虚词，没啥具体意思，你记住这个用语习惯就好了。

directed by:由...指导的，由...操纵的
produced by：用...生产的，是...的表现，制片
story by：...样的故事
based on a story by：原著
by后可以加名词，也可以接短语做by前面宾语的补语