Actress Nicole Kidman, who last appeared in a superhero film in Batman Forever (1995), says she came on board for Aquaman for fun.
Since Batman Forever, Kidman worked in critically acclaimed and content driven films like Lion, Moulin Rouge, Eyes Wide Shut, The Hours and Australia.
In Aquaman, Kidman will essay actor Jason Momoa's mother Queen Atlanna.
"The reason why I love Aquaman is James Wan (director) is an Australian, and I've followed his career since he started. He's a really good friend of mine, and he offered to let me play Queen Atlanna," Kidman told ew.com.
"As soon as he said I could wear mother-of-pearl and be a mermaid warrior, I said I'm done. Please. If there is one thing I have to do in my life, I have to be that. Because, you've got to have some fun," Kidman added.
The 49-year-old will next be seen in The Lobster, The Killing of a Sacred Deer and The Beguiled. The movies are slated to be released prior to Aquaman.
Aquaman will release next year in December.