Hal Jordan in the context of "Alan Scott"

Green Lantern is the name of several superheroes appearing in American comic books published by DC Comics. They fight evil with the aid of rings that grant them a variety of extraordinary powers, all of which come from imagination, fearlessness, and the electromagnetic spectrum of emotional willpower. The characters are typically depicted as members of the Green Lantern Corps, an intergalactic law enforcement agency.

The first Green Lantern character, Alan Scott, was created in 1940 by Martin Nodell with scripting or co-scripting of the first stories by Bill Finger during the Golden Age of Comic Books and usually fought common criminals in Capitol City (and later, Gotham City) with the aid of his magic ring. For the Silver Age of Comic Books, John Broome and Gil Kane reinvented the character as Hal Jordan in 1959 and introduced the Green Lantern Corps, shifting the nature of the character from fantasy to science fiction. During the Bronze Age of Comic Books, Dennis O'Neil and Neal Adams introduced John Stewart, a new member of the Corps who was one of DC's first Black superheroes. Other notable Green Lanterns include Guy Gardner, Kyle Rayner, Simon Baz, Jessica Cruz and Jo Mullein.

The Green Lantern Corps is a law enforcement agency appearing in American comic books published by DC Comics. Co-created by writer John Broome and artist Gil Kane, the organization first appeared along with member Hal Jordan in Showcase #22 in 1959.

The agency patrols the farthest reaches of the DC Universe at the behest of the Guardians, a race of immortals residing on the planet Oa. According to DC continuity, the Green Lantern Corps have been in existence for three billion years. Currently operating amongst the 3600 "sectors" of the universe, there are 7204 members (known commonly as Green Lanterns). Each Green Lantern is given a power ring, a tool granting the use of incredible abilities that are directed by the wearer's own willpower.

Gil Kane (/ɡɪl keɪn/; born Eli Katz /kæts/, Latvian: Elija Kacs; April 6, 1926 – January 31, 2000) was a Latvian-born American comics artist whose career spanned the 1940s to the 1990s and virtually every major comics company and character.

Kane co-created the modern-day versions of the superheroes Green Lantern and the Atom for DC Comics, and co-created Iron Fist and Adam Warlock with Roy Thomas for Marvel Comics. He was involved in the anti-drug storyline in The Amazing Spider-Man #96–98, which, at the behest of the U.S. Department of Health, Education, and Welfare, bucked the then-prevalent Comics Code Authority to depict drug abuse, and ultimately spurred an update of the Code. Kane additionally pioneered an early graphic novel prototype, His Name Is... Savage, in 1968, and a seminal graphic novel, Blackmark, in 1971.

Simon Baz, one of the characters known as Green Lantern, is a superhero appearing in American comic books published by DC Comics, created by writer Geoff Johns and artist Doug Mahnke. Baz is an officer of the Green Lantern Corps, an extraterrestrial police force. The character made his debut in 2012 following The New 52 relaunch as part of its Green Lantern story arc "Rise of the Third Army", in which he replaces Silver Age hero Hal Jordan as the Green Lantern of Earth's sector.

Prior to his debut, the character made an unnamed cameo in The New 52 Free Comic Book Day Special Edition #1. DC later added Baz to its flagship team-up title Justice League of America in 2013.

The Spectre is the name of several antiheroes who appear in American comic books published by DC Comics. The original version first appeared in More Fun Comics #52 (February 1940). The character was created by Jerry Siegel and Bernard Baily although some sources attribute creator credit solely to Siegel, limiting Baily to the artist assigned to the feature.

The Spectre is a divine entity representing vengeance on behalf of The Presence, considered God in the context of the Abrahamic religions. Initially a demon named Aztar, he rebelled against God but later sought forgiveness and was granted a divine role. As the Spectre, Aztar possesses immense power, making him one of the most formidable beings in the DC Universe. He is bound to a human host who assists him in judging the transgressions of humanity and other beings, determining suitable punishments. These judgments are often delivered in a harsh and creatively ironic manner. The Spectre has had multiple hosts throughout its history. The primary host is James "Jim" Corrigan, a Gotham City detective who was killed and resurrected as the Spectre. Hal Jordan also became the Spectre to redeem himself after his actions as Parallax, becoming a force of redemption. Crispus Allen, another Gotham detective, served as a host despite his doubts about God's existence.

Green Lantern is a 2011 American superhero film based on the character from DC Comics. It was directed by Martin Campbell, from a screenplay by Greg Berlanti, Michael Green, Marc Guggenheim, and Michael Goldenberg. Ryan Reynolds stars as Hal Jordan / Green Lantern, a test pilot who is selected to become the first human member of the Green Lantern Corps, an intergalactic police force. He is given a ring that grants him superpowers and must confront Parallax, a being who threatens to upset the balance of power in the universe. The film also stars Blake Lively, Peter Sarsgaard, Mark Strong, Angela Bassett, and Tim Robbins.

The film first entered development in 1997; progress remained stalled until Berlanti was hired to write and direct in October 2007. Martin Campbell was brought on board in February 2009 after Berlanti was forced to vacate the director's position. Most of the live-action actors were cast between July 2009 and February 2010, and filming took place from March to August 2010 in Louisiana. The film was converted to 3D during its post-production stage. This was the first DC film since Catwoman (2004) not to be involved with Legendary Pictures.