" 

 == Themes == 

  removed a sentence about homages to other space films as being synthesis. I reverted this deletion and justify it below with the quote from the article and the line in the current article.    
 * Numerous articles reference the Ed Harris connection 
 * ""Stone goes floating about in nothing but her underwear, it's impossible not to think of Sigourney Weaver's Ripley in Alien.""  > ""evokes Sigorney Weaver's vulnerable Ripley from Alien"" 
 * ""Gravity floats on the shoulders of the Pixar giants... [especially] ""WALL-E,"" with its mysteriously somber opening sequence (and with its comic use of a fire extinguisher, which is put to very different use in ""Gravity"")"" > ""the extravehicular use of a fire extinguisher from WALL-E"""