This is a fan made trailer for a live action Pokemon movie. I was very impressed with it and it conveyed a very dark and gritty tone. I wish this could be made into an actual movie in this style. Here is an excerpt from the trailer’s creators.
Celadon City hasn’t been the same since the Gyms closed down. Pokémon fighting has gone underground, and the sport has gotten a taste for blood. Ash, Misty, and Brock have been forced deep into the city’s seedy underbelly to keep training, but the Pokémon aren’t the only ones in danger. Now, Ash must choose to either become a master in the grim world of illegal pokémon fighting, or make a desperate stand to free them all from the criminal grip of Rocket Industries.