Avengers: Infinity War writers say that the theory about cosmic cube is spot on.
WARNING: Spoilers for Avengers: Infinity War ahead!
Stephen McFeely and Christopher Markus are the writers of Avengers 3 and 4 films, and they recently spoke to Collider about the introduction of Red Skull to Avengers: Infinity War, and if his appearance was part of a long-term plan. They both not only confirmed it but, also revealed that the Tesseract that had shifted Red Skull to Vormir used to be mentioned as Cosmic Cube behind-the-scenes initially.
“Obviously, we started with him, ten years ago,” the writers said of Red Skull. “And he had the Cosmic Cube, which was then referred to sometimes as the Cosmic Cube, and we didn’t know it was one of the Infinity Stones.”
The Cosmic Cube has been a regular element of Marvel Comics for a while now, and it has the power to reshape reality. In the recent Captain America series that featured Steve Rogers to be an agent of Hydra was because of the Cosmic Cube’s effects.
In the movies, Tesseract, despite being shaped like a cube, didn’t display such powers. The cube contained the Space Stone, which was extremely powerful and allowed its user to travel across the space.
The Tesseract has had its MCU run, and now it is gone, so, we are unlikely to see the real Cosmic Cube’s cinematic version in the near future.
Avengers: Infinity War is still going strong in theaters all over the world, and Ant-Man and The Wasp will be the next MCU movie, releasing on July 6.