Kennedy Center honoree Sir Paul McCartney (Bill O'Leary/WASHINGTON POST)

Showtime will debut the docu, from documentary filmmaker Albert Maysles “Gimme Shelter,” “Grey Gardens”) on Sept. 10 at 9 p.m. ET.

One critic started to ask McCartney about having been one of the victims of the hacking scandal that recently brought down Rupert Murdoch’s News of the World newspaper.

 “I promised Paul he would not get personal questions,” Showtime Entertainment chief David “It’s good business to push into taboo subjects, to be subversive, to be daring, to be a little bit scary” Nevins interjected.

“I’ve got to try,” the critic shot back and plowed ahead with her question to McCartney: how did he feel about having been one of the victims of the “apparent violation of privacy.”

“When I go back [to England] after this tour I’m going to talk to police because apparently I have been hacked, but they won’t tell anyone but the person themselves…it’s a horrendous violation of privacy and I do think it’s been going on a long time and more people than we know knew about it. I think I should just listen and hear what the facts are before I comment.”

Most of the questions were more mundane:

 -- Where was he on Sept. 11, 2001?:

“I was on my way back to England. We were at JFK on the tarmac. The pilot suddenly said, “We can’t take off’ and out the window we could see the Twin Towers…first we see one plume of smoke and then two shortly thereafter…Then one of the stewardesses said, “something really serious has happened in New York and we’ve got to get you out of here’.”

 -- What does he remember of the historic Beatles concert in Shea Stadium, in ’65?:

“Screaming. A lot of screaming…We couldn’t believe that we couldn’t hear ourselves..It was like a billion seagulls screaming."

 -- Where do you get a collarless suit? (He’s wearing one – very early Beatles).

“Yeah, how out of touch can you be?!” McCartney shot back. “Honestly!”

“We’re TV critics,” one of them reminded him, apologetically.

“Everybody in Cincinnati is wearing these!” he chided. “You’re in Los Angeles? This has yet to arrive?”

 -- Do you watch a lot of television and what shows do you watch?

“My taste in TV sort of isn’t the greatest…I watch more sports; I like ESPN. I sometimes get completely hooked on the shopping channels. Where do you think I got this collarless jacket?”