Avengers: Age of Ultron has just opened in the world's second biggest film market, but the film's Chinese subtitles have already caused irritation among some of the country's moviegoers.

At one point, Captain America says in the film, "I'm home," which was translated as "I'm good," Chinese webizens have pointed out.

At another point, a line about having to wait too long becomes "I am very old" in Chinese.

Mostly, the problem is that the translations in Age of Ultron are too literal. For example, when Captain America gives some advice by saying "You get hurt, hurt 'em back.

You get killed... walk it off," it comes across in Chinese as "Run fast if someone tries to kill you."

In another scene, Iron Man tries to rally the troops to fight to the death with the line "We may not make it out of this," but for some reason this is translated in Chinese as "Let's back off now."