London, Aug 17 - He has threatened to retire at least twice before and now Hollywood actor Hugh Grant is talking about quitting acting yet again.

Blaming a string of stage fright attacks, the 48-year-old actor says he is ready to give up his day job at last.

'I like everything about filming except the acting. I'm wonderful in rehearsals, but I have never been very good when they actually switch the cameras on,' he said.

'In recent years I've had really bad attacks where I totally froze up. I thought that well, if I am going to get stage fright, then I am packing it in,' he added.

But people are wondering whether he is really serious about retirement because Grant has this habit of threatening to quit and then signing up a movie.

Grant admits that he is slightly embarrassed with his habit. His last talk about retirement came just months after completing work on 'Did You Hear About The Morgans?', his first film in two years.