Plot details have also been revealed as the story follows Smith when his character's father is kidnapped, leading to his team-up with Pikachu in order to find him.
Rob Letterman (Goosebumps) is the director with filming set to commence next month in London.
Readers of Shacknews may have noticed that our staff has an affinity for the idea of an English-speaking Pikachu in a detective's hat who solves mysteries. Until then, don't be surprised if you see a big yellow pocket monster with a magnifying glass and the voice of Ryan Reynolds, because that's kind of the point. Ryan Reynolds certainly is diversifying his portfolio going from wise-cracking Deadpool to Detective Pikachu.
The report says that the role "is said to be motion capture in nature", since it's a live-action role where Pikachu is digitally inserted. Newton will play a "sassy journalist" who will aid them on the journey.
Funnily enough, there's still no word on whether or not the original Detective Pikachu game will ever be released outside of Japan, or whether he'll have another outing.
He'll play the title character, as The Hollywood reporter first reported. Universal Pictures will handle distribution in the US and in foreign territories outside Japan.