Pokémon Detective Pikachu (live-action movie)

The realistic style of the Pokémon in this movie was based on the artwork by RJ Palmer. He was discovered by the movie's production designer, while he was searching for realistic Pokémon designs on the internet. The production designer was so impressed by Palmer's artwork that he gave him a job as the concept artist for the movie’s production.

According to VFX Supervisor Pete Dionne, he stated that, upon designing the Pokémon for this movie, the requirement that the Pokémon Company gave was that 'all Pokemon, no matter what the circumstances, need to remain adorable.'

On the day before the film's theatrical release, the entire movie was "leaked" onto YouTube. In reality, upon clicking this video will only play just a minute of the film, before cutting to an animation loop of Pikachu dancing for approximately an hour and forty five minutes.

During Mr. Mime's interrogation, at one point he mimics Sharon Stone's "leg crossing scene" from Paul Verhoeven’s 1992 mystery thriller movie “Basic Instinct”.

The voice over for the chants of a large crowd were recorded during the 2018 Pokémon World Championships in Nashville, Tennessee.

When Tim and Pikachu were searching the lab, they watched video footage that states that Mewtwo was created and escaped the Kanto region about 20 years ago. Mewtwo was featured in “Pokémon: The First Movie” which was released in theaters back in 1999 in the USA (it was released in Japan in 1998), which is exactly 20 years before the release of this movie.

The movie’s cinematographer John Mathieson, mentioned that, like his other films, this movie was shot on traditional film, as opposed to having it shot digitally. He explained the use of traditional film helped made the movie "look more realistic".

At the time of this movie’s production, the video game series had over 800 Pokémon. It was reported that this movie only featured a little over 60 Pokémon.

The Pokémon Company tried to prevent Mr. Mime from appearing in the movie because they believed he wouldn't turn out well in live-action. Rob Letterman ended up having to pitch the whole idea personally to TPC's president to cajole them into letting him appear.

It was the Pokémon Company's idea to have Ryme City enforcing a ban on Pokemon battles and forbidding Pokemon to be kept inside Pokéballs. With the city trying to show a different and "more elevated" relationship between Pokémon and humans. The Pokemon Company was also very protective on their character Ash Ketchum and forbade the movie to make any reference to him. It went as far as even forbidding Tim from wearing a hat.

The graphic on Tim's t-shirt changes into different versions of Unown, a Pokémon which has many different variations that resemble the letters of the Latin alphabet.

The huge success of the Pokémon GO mobile game was the reason why the franchise was allowed to adapted into a live action movie.

Despite having six distinctive cries, the voice actor for Psyduck is unlisted and unnamed.