The pair teamed up for the 1988 movie, about two long-lost siblings, and DeVito was keen to work on a follow-up 15 years later - but Schwarzenegger torpedoed the proposal as he was running in the election for Governor of California.
DeVito admits the snub sent him into a spiral of despair and he became convinced his pal's political ambitions were "the stupidest thing in the world".
He tells U.K. talk show host Graham Norton, "He became governor of the state of California. I pitched the idea of Twins 2 to him way back then but he told me he was running for the candidacy and I thought that was the stupidest thing in the world.
"I was depressed, not because I thought it was ridiculous and how could this guy run the state, but because I was thinking how much money is this going to cost me if he didn't do the movie. Turns out I was right (about the governorship), it was a disaster!"
The Harry Potter actress left the hip-hop star speechless within minutes of beginning their interview on The Graham Norton Show when she admitted she was transfixed by him.
Margolyes told him, "I'm just fascinated by you because unfortunately, I don't know many black people, except in showbusiness - and that's what's so nice... I don't know much about rappers, you're the first one I've actually talked to."
The audience gasped but the Black Eyed Peas star appeared to take her comments in good humour, telling her, "I'm the first rapper and black dude you kicked it with," before teaching her the meaning of the slang words 'homeboys' and 'old school'.
Margolyes later heaped praise on will for his charity work, insisting, "You're fabulous, you really are... You're making a difference, and that's what we all want to do in our lives. How unexpected that this rapper would do this!"
The episode aired in the U.K. on Friday (22Jun12).
Funnyman Russell Brand flew into a rage during a U.K. TV interview after he was quizzed about his split from Katy Perry.
The British comedian was promoting his new movie musical Rock Of Ages on The Graham Norton Show when the Irish host asked him about his failed marriage.
Brand looked into the audience at his mum Barbara in the front row, then turned to Norton and accused him of making her tear up.
He ranted, "My mum is here. She got upset when you dragged up my marriage. I saw her cry, Graham. That's the reality because it's real people, Graham, that's my real mum. I have come here to promote a film and you made my mum cry. I don't see you as that sort of person Graham."
Norton insisted, "I don't see myself as that kind of person," and explained that it would have seemed "weird" not to ask about Perry as she had been a guest on the show last week (07Jun12).
Brand retaliated, "Will people sit and think, 'Oh, that's odd.' What I would have done, mate, in your position is come up to me before the show and gone, 'Listen, it's a bit odd that your ex-missus was on last week. I might mention it, is that OK?' But in all of the chatting and the research backstage, no one mentioned it."
When Brand finally chatted about his failed union, he said, "Some human beings get married and hopefully it works out for them and maybe it won't. If people get divorced, maybe that is a sad thing."
The heated exchange was edited from the episode when it aired on Friday (15Jun12).
Charlize Theron's baby son Jackson "freaked out" when she took him on a commercial airliner for the first time — because the six-month-old boy is already accustomed to private planes and first-class travel.
The Oscar-winning actress has previously told how she jetted around with the world with Jackson from the moment she adopted him, as she was in the middle of her hectic promotional schedule for Snow White and the Huntsman.
It means the tot has already visited Japan, Spain, France and Germany in his young life — but his jet set lifestyle has had an unexpected consequence.
Monster star Theron tells U.K. talk show host Graham Norton, "There has been a lot of travelling and stuff and he came with me on tour and did the whole of Europe and Japan. We were really spoilt and went everywhere by private jet. I want to keep him humble so I told this newborn, 'This is not the norm' — and he did great until we took the first commercial flight and he just freaked out!"
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The actress donned a prosthetic bust to play a pregnant mum in the new comedy, and when the shoot moved to sun-kissed Atlanta, Georgia, the searing heat caused the false boobs to wilt.
And Diaz admits she was upset to see how she looked with a low-hanging chest - as it gave her a glimpse of how her figure could fade as she ages.
She tells U.K. talk show host Graham Norton, "We were shooting in Atlanta and it was very hot and it got very swampy here (by the breasts), and by the end of filming these beautiful breasts were literally hanging down to my waist.
"I was so upset but thought, 'Well that's nature, that's what's going to happen anyhow'."
The actress, 39, was being interviewed by talk show host Graham Norton this week (beg21May12) when she suddenly began chatting to her fellow guest, famed nature show narrator Attenborough, 86.
As Norton watched, the pair established a natural rapport and enjoyed some racy banter - before Diaz asked to join Attenborough for a "private viewing" of outtakes from his show, drawing gasps and giggles from the audience.
The blonde beauty told the award-winning broadcaster, "I am so excited to meet you because I wanted to be a zoologist. I thought I would be one for my entire life and I did end up studying animals, but human animals. As an actor that's what I do, but I find so many surprises when I watch your shows."
Attenborough replied, "I could teach you all sorts of things. You should see the outtakes," prompting Diaz to respond, "Perhaps we could have a private viewing!"
The interview will be broadcast in the U.K. on Friday (25May12).
Will Smith has a lot going on these days, from appearing in the latest installment of the Men in Black franchise to his recent confrontation with a reporter. But even in the midst of all this, the actor/singer can still recall the words to The Fresh Prince of Bel-Air theme song. (Sure, but can he still do the Carlton dance?!)
Smith recently appeared on the Graham Norton Show and was asked to revisit the beloved rap song in front of the U.K. audience, to which he happily obliged.
This trip down memory lane got us thinking about other ear worm theme songs in need of a comeback. How about one of the Olsen's crooning Full House's "Everywhere You Look" or Woody Harrelson playing Cheers' "Where Everybody Knows Your Name" on the bongos? We're betting Jaleel White would have stuck around a little bit longer on Dancing With the Stars if he'd done an interpretive dance to Family Matters' theme "As Days Go By."
Let us know which popular TV theme songs you wish would make a comeback and check out Smith's video below for some inspiration. Smell ya later!
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Smith romped with his real-life wife Jada Pinkett Smith onscreen in the 2001 picture, which charted the life of boxing legend Muhammad Ali, and Britain's heir to the throne was among the audience at its London unveiling.
But the royal didn't seem too keen to watch the Smiths get it on at the premiere, and the Hollywood star has revealed the prince had a pre-arranged ploy to avert his eyes when the saucy scene was played out.
Smith tells U.K. talk show host Graham Norton, "It was really cool, I sat next to Prince Charles at the premiere of Ali and someone taps his shoulder before the love scene comes up and he looked down the whole time and when it came to an end someone tapped him again and he looked up. He missed my best work!"
The movie star was determined not to rely on a body double for action scenes in the sequel, but his advancing years left him suffering bumps and bruises, and he has decided to take it easier in future.
Smith tells U.K. talk show host Graham Norton, "I started off thinking, 'I don't need a stuntman, I'm Will Smith! What do I need a stuntman for?' Then I had to jump out of a second-storey window and we did it eight or nine times... I remembered I am 42 and I'm like, 'Can someone go get the stuntman from his trailer? We don't need him but just get him to come out and watch the next one!'
"It takes longer to heal up after those things and I'm doing less stunts in the future."
The pair, rumoured to be dating in real-life, peeled off for a romp in 2011 film The Twilight Saga: Breaking Dawn - Part I but producers later toned it down to avoid being slapped with a restrictive R-rating.
And Stewart admits she was surprised to see the final product, as she and Pattinson had gone to great lengths to make the scene as passionate as possible.
She tells U.K. talk show host Graham Norton, "It is a bit full on but it's edited. I see scenes and I think why is music playing over that, I was definitely making sounds and it could be so sexy and it's not. The ratings board breaks it down so technically and apparently, thrusting is a huge problem for the children."