"Death", which is essentially a Clip Show using material from episode 1-24 with some entirely new scenes added in (some of these scenes were later included in the "Director's Cut"/"New Production Cut" version of the anime).
"Rebirth", which consists of the first 25 minutes of The End of Evangelion.
The End Of Evangelion: Feature-length film released in July 1997. Consists of alternative versions of the anime's episodes 25 and 26. Whether it is meant to replace or complement the original ending remains a hotly debated issue in the fandom.
Rebuild of Evangelion, a retelling consisting of four new animated movies which is currently in production. The first film was released in Japanese cinemas in September 2007, and as of the second film, Rebuild has become a full-blown Alternate Continuity. Although it is by no means Lighter and Softer, character angst/personality issues aren't quite as extensive, and some arrows point to an actual upbeat ending instead of the grim yet Bittersweet Ending of The End of Evangelion.
The manga version, written and drawn by character designer Yoshiyuki Sadamoto, which tells the same story as the anime (albeit with a number of changes). It finally finished its run in June 2013, after starting out as promotion material for the upcoming anime back in December 1994.
Neon Genesis Evangelion: 2nd Impression, a Visual Novel with several parts styled like an episode each. Introduced Canon Foreigner Mayumi Yamagishi, a Shrinking Violet described by fans as the female equivalent of Shinji.