Marcia Gay Harden will co-star with Jamie Dornan in the new film, Fifty Shades of Grey. Harden is set to play Dr. Grace Trevelyan Grey in the movie. The movie is about Christian Grey, and it is based on a book by E.L. James.

When talking about her current Irish co-star, Harden told Entertainment Weekly, "Behind the scenes, he’ll jump into an Irish ditty, or he was singing a lot of Rita Ora…he’s like [in Irish brogue], ‘Oh, you got that in brain now.’ We’re like, ‘Come back to America, because you got a scene in a minute.’ ‘But it’s in my brain!’ He’s sweet.”

Dornan will be playing Christian Grey in Fifty Shades of Grey, according to Entertainment Weekly. Harden says that Dornan was known to sing Rita Ora songs between takes. Dakota Johnson is also in the film, which is directed by Sam Taylor-Johnson. The screenplay was written by Kelly Marcel. Dornan previously starred on ABC’s Once Upon a Time, the Irish TV drama series.

The new film, Fifty Shades of Grey, will hit theaters on February 2015.