Chris Hemsworth worries about his wife and children ''backbiting'' him.

The 'Thor' star - who has two-year-old daughter India and twin boys Sasha and Tristan, 11 months, with his wife Elsa Pataky - is worried his family will talk about him behind his back in Spanish as the children are learning their mother's native language.

He said: ''Bad luck for me: I don't speak two languages. I'm afraid my wife and my kids will backbite about me in Spanish one day and I will have no clue what they are (saying).''

Despite his worries, Chris is currently enjoying travelling around the world with his family but realises things will have to change once his daughter reaches five or six-years-old.

He shared: ''As long as the kids are so young and don't have to go to school, it's not difficult to travel with them. We've been a few months in London, then America, now in Australia again.

''For us, it's fun to travel around. When my daughter goes to kindergarten, we'll have to organise it differently. Then we need a real home base.''

The 31-year-old actor - who hails from Australia - also hopes travelling with his children will open up opportunities for them like it did for him when he was younger.

Speaking in the new issue of Germany's Glamour magazine, he said: ''As a kid I really liked to travel and get to know different ways of life and cultures.

''That opened up alternatives for me... I hope I can manage that for my kids as well. Travelling means that I have to be awake and interested.''