The 2023 action-thriller movie Mercy has a runtime of about 1 hour 25 minutes (85 minutes).

If you meant the upcoming Mercy (often referred to as the AI courtroom thriller releasing in theaters in January), that film is listed with a runtime of about 1 hour 40 minutes (100 minutes).

So depending on which Mercy you’re asking about:

  • Mercy (2023, R-rated action thriller): 1h 25m.
  • Mercy (2026, AI/cyber courtroom thriller): 1h 40m.

TL;DR:

  • If someone online says “ How long is Mercy movie? ” they usually mean the 2023 movie: 85 minutes.

Information gathered from public forums or data available on the internet and portrayed here.