The film, starring Sandra Bullock and George Clooney could have been completely different.
According to the description, the alternate scene was shot by Oscar-winning director of
Gravity, Alfonso CuarĂ³n, but was regrettably rejected by the top brass at Warner Bros.
However, the video was uploaded to
YouTube by one
Krishna Shenoi, a "20-year-old Indian boy who has been obsessed with movies for as long as I can remember," who is the more likely suspect in its creation. The video is included above for your enjoyment.
Whoever made it, the effects are certainly clever. The clips used come from the original movie
Gravity (2013), cleverly combined with clips from
Superman IV: The Quest for Peace (1987).