Physical Media: For the best possible audio and visual quality, the 4K Ultra HD or Blu-ray editions are unmatched and often include extensive behind-the-scenes features.
Dubbed versions on Isaidub are a coin flip. Because the site uses amateur editors, the audio often drifts. Watney might say, "I am going to science the shit out of this," but his mouth stopped moving three seconds ago. For a dialogue-heavy film like The Martian , this is fatal.