The Graham Norton Show

Gwyneth Paltrow dropped by The Graham Norton Show in London yesterday to tape an interview while promoting her newest film, Iron Man 3, across the pond. She shared a giggle and a glass of white wine with host Graham Norton, as well as her fellow guests Mo Farah and Lee Mack, the latter of whom got playfully grabbed in the crotch by Gwyneth. Fans can get more context to the handsy situation when the interview airs tomorrow in the UK.

Gwyneth has had her hands full over the past few weeks as she continues her press push for her new movie with costar Robert Downey Jr. RDJ has been turning up the charm and even playfully kissed Gwyneth during a London photocall for the movie yesterday. The film's London premiere was supposed to take place on Wednesday, but the crew had to reschedule the event to today due to Margaret Thatcher's funeral. Next, Gwyneth and Robert will head back to the States for the April 24 premiere in LA.

Kristen Stewart donned a Jason Wu outfit with a sheer top yesterday for a stop by Britain's The Graham Norton Show. She was on hand to chat about Snow White and the Huntsman, sharing space on the red couch with What to Expect When You're Expecting's Chris Rock, singer Engelbert Humperdinck, and actor Stephen Mangan. Kristen's in Europe promoting the picture alongside costar Charlize Theron. The ladies were in Paris a few days ago to make press rounds that included a stop by talk show Le Grand Journal. Now they're together in England, having flown on separate private jets, for more interviews and the UK premiere Monday.

Jessica Biel arrived at London's BBC Radio 1 station this morning for an interview about her soon-to-be-released New Year's Eve. Jessica was without the company of her boyfriend, Justin Timberlake, though yesterday she ran into another very sexy guy, Bradley Cooper. It was a friendly reunion for the former A-Team costars, who caught up during a taping of The Graham Norton Show. Jessica sat down on the famous red couch to chat up her latest role while Graham Norton grilled Bradley about his newly crowned Sexiest Man Alive title. Jessica seems to be taking over the UK press duties for the ensemble film; however, she's not expected to walk the red carpet at Monday's LA premiere.

Johnny Depp and Carey Mulligan both made appearances on The Graham Norton Show in London yesterday. Ricky Gervais was also a guest for the star-studded taping of the popular UK talk show that will air today. Johnny sat down to chat about The Rum Diary, which opened in the US last week, while Carey took a break from filming The Great Gatsby for the interview. Carey opened up about her kissing scenes with Johnny in 2009's Public Enemies and said they were cut from the movie because she looked too uncomfortable. She also shared that her nervousness has continued on set with Leonardo DiCaprio, whom she stars opposite in Gatsby, saying, "I grew up watching everything he's ever done and it's difficult as I have to hide my inner fan when I am around him, it's terrible." Carey added that Leo "claims not to be able to dance when we do a dancing scene and I have to hide the fact that I know he can because I saw him dance in Titanic."

Robert Pattinson and Reese Witherspoon brought their UK press tour for Water For Elephants to The Graham Norton Show studios in London last night. The costars chatted about their new circus drama, and also shared space on the stage with fellow guests Shappi Khorsandi and House actor Hugh Laurie. Robert and Reese have been traveling all around Europe for the last few weeks to show off the film with screenings in Berlin, Paris, and Barcelona. Yesterday was their UK premiere of Water For Elephants, which they followed up with an afterparty at the Home House Private Members Club. They're certainly among the hardest-working movie stars — where do Robert and Reese rank on your PopSugar 100 list of all time favorite stars? Robert's real-life leading lady, Kristen Stewart, is also in the running in that category. She's had a busy few days too, staying in NYC to attend the Costume Institute Gala on the arms of Proenza Schouler designers Lazaro Hernandez and Jack McCollough.

Diane Kruger was one of the guests on hand for a taping of The Graham Norton Show in London yesterday. The actress chose another chic black and white ensemble for the episode, which airs on the BBC this Friday. She shared the couch with Lost's Matthew Fox, even at one point sharing a high five. Diane was in the UK after a quick stop in Germany where she attended the Berlin Film Festival premiere of her movie Unknown. She was in California just last week to promote the film at the West Coast screening, and all her hard work paid off when the project took the top spot at the weekend box office. She's rolling solo on her current trip abroad; however, she had her handsome Valentine, Joshua Jackson, by her side last month on a romantic Cabo vacation.