Question

1. In the movie,Black,Rani played the lead role. (passive voice)

Answer 1

In the movie,Black,the main role was played by Rani.

Hope this helps!

Answer 2

${\boxed {\boxed {\boxed {\boxed{\sf{Here \: is \: your \: answer}}}}}}$ 

First of all, what is passive voice?

Passive Voice simply means that the object of the sentence becomes the subject of the sentence without changing the meaning of the sentence.
For example, He eats a mango.
The given sentence is in active voice . It's passive voice will be..
A mango is eaten by him.

Coming to your question,

In the movie,Black,Rani played the lead role.

${\bf{Answer}}$ =>

The lead role was played by Rani , in the movie Black.

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Thanks!!