4 stars only.
I'm a fanatic of well founded sci-fi films and also a fan of space fantasy as Star Wars, Invasion, Star Trek and many others that are beyond logical technology.
Gravity pretends to be a realistic movie of what could happen in space setting an scenario where it completely loses many facts, it has so many errors in physics and Earth orbits functionality.
Yet, I think there's is no other movie (neither close to this) to picture so many gorgeous scenes of our outer planet, space, darkness, loneliness; the light, the effects, the photography, the colors, are overwhelming.
Every time I watch it, I keep track of the geography and go: Oh! there's Corpus Christi, TX, Ha!! that's Chapala Lake in Mexico, Wow! that's the Caribbean Sea with Cuba, Nicaragua and Honduras... Oh! Look that's the Red Sea seen from African Sahara and Italy...
and So... Yet I cannot define where Dr. Ryan lands the Chinese scape pod