Watch the new 'Pokémon Detective Pikachu' trailer.

A brand new trailer has been released for 'Pokémon Detective Pikachu' (out in New Zealand cinemas on May 9th), which introduces a rather angry looking Mewtwo, and features a cameo from none other than Diplo.

"The world of Pokémon comes to life! The first-ever live-action Pokémon adventure, 'Pokémon Detective Pikachu' stars Ryan Reynolds as Pikachu, the iconic face of the global Pokémon phenomenon—one of the world’s most popular, multi-generation entertainment properties and the most successful media franchise of all time. Fans everywhere can now experience Pikachu on the big screen as never before, as Detective Pikachu, a Pokémon like no other. The film also showcases a wide array of beloved Pokémon characters, each with its own unique abilities and personality.

The story begins when ace private eye Harry Goodman goes mysteriously missing, prompting his 21-year-old son Tim to find out what happened. Aiding in the investigation is Harry’s former Pokémon partner, Detective Pikachu: a hilariously wise-cracking, adorable super-sleuth who is a puzzlement even to himself. Finding that they are uniquely equipped to communicate with one another, Tim and Pikachu join forces on a thrilling adventure to unravel the tangled mystery. Chasing clues together through the neon-lit streets of Ryme City—a sprawling, modern metropolis where humans and Pokémon live side by side in a hyper-realistic live-action world—they encounter a diverse cast of Pokémon characters and uncover a shocking plot that could destroy this peaceful co-existence and threaten the whole Pokémon universe.

Pokémon Detective Pikachu is directed by Rob Letterman and also stars Justice Smith as Tim, and Kathryn Newton as Lucy, a junior reporter following her first big story; as well as Suki Waterhouse, Omar Chaparro, Chris Geere, with Oscar nominee Ken Watanabe and Bill Nighy."

Watch the new trailer below...