Arnold Schwarzenegger doesn't plan to retire.

The 65-year-old star feels most in his element when he is on the set of a film and although he is getting older, he enjoys working hard and feels guilty when he relaxes.

He said: ''I am happiest when I work. After six hours of sleep I wake up and have a guilty feeling, that I am still lying in bed. Getting older doesn't mean getting worse.

''The word 'retirement' doesn't appear in my vocabulary. Who says you can't act for the camera when you are 80 or 90?''

Arnold - who has children Katherine, 23, Christina, 21, Patrick, 19, and 15-year-old Christopher with his ex-wife Maria Shriver - moved to the US in 1968 when he was a 21-year-old bodybuilder and even now he still sees it as the ''land of opportunity'' compared to his home country of Austria.

He added to Swiss magazine Blick: ''I love my life [in the US]. Many European countries have become like America. The living standard is higher now; everybody has a TV, cars, holidays. We didn't have all these things when I grew up.

''I wanted to go to America because the action was there, the money, the skyscrapers. America was the winner. Now many Europeans are the winners.

''Even if America has to overcome something in these days it is still the number one in the world. The land of opportunity.''