Scarlett Johansson is facing backlash for her acting choices once again, but has defended her decision to portray a transgender man in an upcoming movie.

The performer, best known for her role as Black Widow in Marvel’s Avengers movie franchise, is set to star in Rub & Tug, a film based on the colourful life of Pittsburgh crime boss Dante (Tex) Gill in the 1970s, according to industry media outlets.

A complex, larger-than-life character who  built an empire of mᴀssage parlours authorities say served as a front for prosтιтution, Gill died in 2003 at the age of 72. Born a woman, Gill identified as a man and insisted on being addressed as Mr. Gill, according to his obituary.

Johansson will also serve as a producer on the film.

The casting quickly sparked a wave of disapproval online, with many criticizing the filmmakers for not hiring a trans actor to star and decrying the project as another instance of Hollywood sidelining an underrepresented group.

April Reign, the activist behind the #OscarsSoWhite campaign, was among the critics.

“We’ve seen male and female actors in the past few years walk away from roles so that a person who could bring a more nuanced experience to the character was allowed to shine. That is what should happen here,” she wrote.

When approached for comment on the backlash, a Johansson representative told online magazine Bustle: “Tell them that they can be directed to Jeffrey Tambor, Jared Leto and Felicity Huffman’s reps for comment.”

Tambor, Leto and Huffman are cisgender actors who have earned acclaim and awards for portraying trans characters onscreen (in the Amazon series Transparent and the films Dallas Buyers Club and TransAmerica, respectively).

Canadian director Jean-Marc Vallée, who directed Leto in his Oscar-winning role in Dallas Buyers Club, said he doesn’t agree with the backlash.

“[It] doesn’t mean that because I am casting this type of role that I need to go to this type of person. This is the nature of acting. It’s pretending,” he said from Montreal on Wednesday.

Vallée said he’s open to seeing transgender actors at auditions, but “it’s not about aiming for … an astronaut because your character is an astronaut.”

Ghost in the Shell reunion
Rub & Tug will reunite Johansson with Rupert Sanders, who directed her in the controversial live-action adaptation of Ghost in the Shell.

That project came under fire because Johansson played a character that — in the famed original manga series  — was a Japanese woman.