Ashton Kutcher is reportedly a diva on the set of ''Two And A Half Men'.

The 35-year-old actor has refused to talk to fans who take part in the Warner Bros back lot tour, even though his predecessor Charlie Sheen always made time for his supporters.

A source told Hollyscoop: ''Charlie was the greatest. He stopped and took pictures with fans on the tour. But Ashton won't let anyone down the back lot streets where his trailer is, even during tour hours.''

Meanwhile, Ashton's co-star Jon Cryer has revealed they were both left shocked when fellow star Angus T. Jones launched a tirade against the sitcom calling it ''filth'' in a video with his church pastor.

He said: ''It is surreal to be part of several internet s**t storms. When the latest one happened Ashton came up to me and he looked like he had seen a ghost and he was like, 'Did you hear about Angus?' and I was like, 'He is ok?' He said, 'Sort of,' and he showed me the video. And as I said having become a veteran of the internet s**t storm afterward I just looked at Ashton and said, 'Well do you think he still wants to go in on the crew gift?' It's just been one after the other.

''My life has taken a lot of strange turns. Mostly I'm just glad everybody is still alive.''