Finally, Angier can pull off his magic trick. Each night, he clones himself on stage by stepping into Tesla's machine. The "original" Angier drops into a tank of water waiting below the stage.

Did Angier shoot his clone?

When Angier Prime tries the machine out, another Angier is produced; however, it's hard to say if the one in the secondary spot is the Prime who's been teleported or if this is a clone. Nonetheless, the one in the Prime spot shoots the second one after the initial test, killing him.

Is the original Angier dead?

In the climax, Angier (Hugh Jackman) is shot by Borden (Christian Bale) but considering the number of times Angier dies and reappears, it is hard to say if the one who died was the original Angier or not. Going by the details, the original Angier did die by the end of the film.