Matthew McConaughey is "excited" about the new season of 'True Detective'.

The Oscar-winning actor starred as a homicide cop opposite Woody Harrelson in the show's first season in 2014, and he thinks casting Mahershala Ali in the upcoming third series of the crime anthology programme was a brilliant move.

He said: "Yeah, I heard the good news. That was a great idea to cast Mahershala.

"That's good for 'True Detective', and it's good for Mahershala. Nic [Pizzolatto's] writing is gonna be something that Mahershala will be very grounded in and bring to life. I'm excited to see what happens."

Meanwhile, the 'Dark Tower' actor - who reportedly turned down roles in 'Doctor Strange' and 'Guardians of the Galaxy Vol. 2' - admitted he is keen to star in a superhero movie, but would only take it on if it was the "right character and the right story".

He told Vanity Fair: "I'd love to be in a Marvel and DC superhero movie. The right story just hasn't come along.

"I enjoy superhero movies, but it's about finding the right character and the right story.

In the meantime, the 47-year-old actor relished his role as

the Man in Black, an evil sorcerer with telepathic powers who can manipulate the elements, in 'Dark Tower'.

He said: "Playing the bad guy, the evil incarnate, was a whole lot of fun.

"What I loved the most about this character is that your imagination can go wild. There's so many different ways to do it and be entertained with how you dispose evil..

"I liked the 'Dark Tower' script. It allowed me to approach the character and create something original and as my own.

"To play a character who is like the devil that has fun, and has the power to just sit there and ask people the right questions that exposes their own hypocrisy, and they self-implode--that's exciting and original."