The Flash Director Upset by Nicolas Cage Superman Leak

After a major Superman cameo from The Flash surfaced online, director Andy Muschietti expressed his disappointment in how the information got out.

Warning - this article contains major spoilers for The Flash.

The Flash swung for the fences with its use of cameos, particularly in its climactic final battle by including Multiversal Variants of DC heroes, including Nicolas Cage's Superman from Tim Burton's canceled 1998 movie, Superman Lives.

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