That's how Alyssa Rosenberg reads the new blockbuster:

In Time is a perfect example of how science fiction, by displacing us from our present circumstances, can create space for us to talk more directly about them. It’s striking to see what movie characters can say when the word “money” is replaced with “time” that they’d never say without the linguistic switch,. “For a few to be immortal, many must die,” warns the wealthy Henry Hamilton at the beginning of the movie. “Everyone can’t live forever…Where would we put them?…The cost of living keeps rising so people keep dying…But the truth is, there’s more than enough. No one has to die before their time.”

Jamelle Bouie calls it "a full-on Marxist critique of capitalism:"