If the early buzz is any indication, James Cameron has already delivered on the promise of a worthy sequel to "Avatar." A step-up in almost every department, "Avatar: The Way of Water" looks to blow our minds once again through an expanded world, a bevy of new characters, and enough VFX to fill out a few Marvel films. As the title suggests, the long-awaited sequel will explore the depths of the ocean on Pandora and its surrounding people. After all, Cameron and the ocean go way back....