I recently watched a sci-fi/action movie and forgot the title...
- it was probably a blockbuster
- a recent one (probably after 2010)
- I cannot remember the main story but it was around people flying in space with a mission
- they were confronted to a race / mutated humans who were extremely aggressive and were flying from planet to planet to pillage and kill
- on of the scenes (at the beginning I think) features the good guys (and one woman I think) closely escaping from them on a planet and they killed on their way out one poor guy caught by the mutants (to spare him torture and being eaten alive if I remember correctly)
- they also had to go through space between the spaceships of the mutants (who were having parties on the space ships) and "decorated" their own spaceship with corpses to look like the mutant's ones
I believe that the mutants were some form of experiment, if I recall correctly the scientist (a woman) who was working with (or rather - on) them left a video message explaining this just before being attacked and murdered.
Another scene features one of the good guys telling a crowd to get into a bank safe and close it from the inside and not open - when the mutatnts were approaching.
Now I hope I did not mixed up a few movies on the way :)