Did you have an opportunity to discuss the role with her?

I was grateful to have that.

What did you want to bring to the character?

Nafessa Williams smiling

I wanted to show the loyalty that Robyn had [to] Whitney, and I think still has.

I think she’ll always have it, to a certain extent.

It was so divine.

Naomi Ackie as Whitney Houston performing

I could feel her energy, and it was a spark.

We had a thing.

It’s [the] goal.

Robyn and Whitney lying together in Whitney Houston: I Wanna Dance With Somebody

It’s what an actor prays for, actually.

Having now done the movie, what does Whitney Houston mean to you?

Well, I was already a diehard Whitney Houston fan.

“Whitney Houston: I Wanna Dance With Somebody” debuts exclusively in movie theaters on December 23.

This interview has been edited for clarity.