World's Finest (film)

World's Finest is a fan film directed by Sandy Collora. It works as a trailer to a film that does not exist: the long-awaited cinematic team-up of Superman and Batman. While Superman and Batman had appeared together often in comic books and in animation (notably Super Friends), there would not be an official live-action pairing until Batman v Superman: Dawn of Justice, which was released twelve years later. The title refers to a famous comic series that featured Batman and Superman working together in every issue.

The trailer features common themes from the comics, such as Bruce Wayne and Clark Kent meeting each other and feuding over Lois Lane's affection. In addition, the trailer features the villains Lex Luthor and Two-Face. The trailer also depicts inspiration and influence from the elements of comic book artist Alex Ross.

The trailer starts with an introduction to Superman followed by Lex Luthor who is running for president of the United States and therefore plans to do something big which could endanger the lives of many people. Clark and Lois attend to a formal party celebrating the partnership between LexCorp and Wayne Enterprises, where they meet Bruce Wayne. Later Clark discovers that masked vigilante Batman has been spying on him and, despite their mutual differences and disagreements, they must work together in order to defeat both Lex Luthor (empowered by his high-tech warsuit) and Two-Face who kidnapped Lois Lane knowing that it would lure Superman into a trap, thanks to Lex who provided him kryptonite in exchange of killing both superheroes within 3 days. Almost at the end of the trailer, Two-Face shoots a weakened Superman with a kryptonite bullet, as he laughs and Lois watches in horror, Batman slowly emerges from behind the villain ready to attack.

The trailer used Los Angeles, California, to portray the city of Metropolis. As an homage to the 1952 TV series Adventures of Superman, the Los Angeles City Hall was filmed as the Daily Planet building.