A Superman fan theory suggesting that a popular Green Lantern character could show up in the DCU movie has been debunked.

Guy Gardner's Green Lantern power ring receives a major upgrade for the latest Superman movie, and we finally get to see what it looks like outside the ring case.

Jo and Hal team up against Abin Sur in Absolute Green Lantern #4! But will their plan to free Evergreen backfire ...

The DC Universe is a surprisingly small place, with many characters having existing relationships before they became heroes.

Green Lanterns are known for their loyalty and willpower - and then there's Guy Gardner. Here's everything you need to know about the DC hero before "Superman." ...