Detective Pikachu 2 is one of the first films ever to get a sequel before the original is released.
Pikachu is based on the video and card game popular around the world that sees players acting as trainers who collect cute but powerful monsters called Pokemon in order to compete in battle tournaments.
Pikachu is a species of Pokemon, while Detective Pikachu the character is a peculiar sort from the Pikachu set, a self-styled investigator who is good at finding things.
In Detective Pikachu, Ryan Reynolds is voicing Pikachu while Justice Smith is the lead human in the movie, directed by Rob Letterman (Goosebumps). The plot of the movie revolves around a young man teaming up with the Pikachu to find his father.