Warner Bros. and Lego Group announced the development of The Lego Batman Movie as a spin-off from The Lego Movie.
The first official trailer for The Lego Batman Movie was released, giving audiences a glimpse of the film's animation style and humor.
The Lego Batman Movie had its world premiere, marking the official debut of the film to audiences and critics.
The Lego Batman Movie was released widely in theaters across the United States and internationally.
Young Bruce Wayne witnesses the death of his parents, motivating him to become Batman.
Bruce Wayne adopts the Batman persona to fight crime in Gotham City.
Batman establishes himself as the protector of Gotham, confronting villains like Joker on numerous occasions.
Joker gathers many Gotham villains to join forces and create chaos.
Joker steals the Kryptonite from a museum to use against Superman and other heroes.
Batman insists on working alone and rejects offers of help from others.
Batman visits the memorial of his parents, reflecting on his motivations.
During a fire in Wayne Manor, Batman rescues Robin, who later asks to be his sidekick.
Batman reluctantly trains Robin and later Batgirl as crime-fighting partners.
Joker leads a breakout, unleashing a group of villains on Gotham.
Batman teams up with Robin, Batgirl, and other Gotham heroes to confront Joker and stop his plan.
After the battle, Batman acknowledges the value of family and teamwork.
