Michael Sheen has spoken about the struggle of travelling back and forth between the UK and the US after his split from Kate Beckinsale.
The former couple, who have a daughter, Lily, split in 2003 after eight years together.
Speaking to Annie Macmanus on her podcast Changes, he said: "Going through that experience of a relationship breaking down and having a young child, and then because of my daughter and her mum living in another country, having to make a life in a new place whilst going through that whole experience, which is difficult enough.
Actors Kate Beckinsale and Michael Sheen attending the Evening Standard Theatre Awards at the Savoy in London.
Two of the stars of "The Golden Bowl", actresses Kate Beckinsale (left) and Uma Thurman, arrive for the film's premiere at the Curzon cinema in London's Soho. Beckinsdale is wearing a dress designed by Stella McCartney.
British star Kate Beckinsale (wearing a Givenchy outfit) and co-star Josh Hartnett arrive at the Odeon, Leicester Square for the UK Gala premiere of the film in which they star Pearl Harbor.
Actress Kate Beckinsale with her husband at the My VH1 Music Awards at the Shrine Auditorium in Los Angeles.
Kate Beckinsale and her partner Michael Sheen arriving at the Vanity Fair post Oscars party held at the Morton's restaurant in Los Angeles. Kate is wearing a gown by Valentino.
Kate Beckinsale at the MTV Movie Awards 2004, Los Angeles. Doug Peters/allactiondigital
Actor Leonardo DiCaprio and actress Kate Beckinsale.
From left to right; Kate Beckinsale, Leonardo DiCaprio, Martin scorcese, Cate Blanchett and Harvey Weinstein.
Kate Beckinsale and her daughter Lily Sheen arrive at the world premiere of 'Harry Potter and the Goblet of Fire' in London's Leicester Square, Sunday 6 November. The film is the fourth version of JK Rowling's series of Harry Potter books to be made.
Kate Beckinsale and Adam Sandler attend the UK premiere of Click at the Empire Cinema Leicester Square, central London.
Direcor Len Wiseman and his actress wife Kate Beckinsale arrive for the UK Premiere of Die Hard 4.0, at The Empire Cinema in Leicester Square, central London.
Kate Beckinsale arrives for the 14th Annual Screen Actors Guild Awards in Los Angeles.
Kate Beckinsale and husband Len Wiseman arrive for the 15th Annual Sir Elton John AIDS Foundation Oscar Party at the Pacific Design Centre in Los Angeles.
Kate Beckinsale and Len Wiseman arriving at the 17th Annual Elton John AIDS Foundation Oscar Party at the Pacific Design Center, West Hollywood.
Actress Kate Beckinsale walks through Terminal 5 at Heathrow Airport, Middlesex, as she and her daughter Lily catch a flight.
Kate Beckinsale arriving at the Vanity Fair Oscar Viewing Party 2010, at the Sunset Tower, Los Angeles
Tim Burton and Kate Beckinsale, judges of the films competing for the Palme D'Or, at a photocall during the Cannes Film Festival in the French town.
Kate Beckinsale arriving at the opening gala premiere of Robin Hood 2010 at the Grand Auditorium Lumiere, Palais des Festivals, Cannes.
Kate Beckinsale arrives at the premiere of the film, "Biutiful" at the 63rd Cannes Film Festival in Cannes, France.
LL Cool J and Kate Beckinsale at the 54th annual Grammy Awards held in Los Angeles on February 12, 2012. CBS/
Colin Farrell, Kate Beckinsale, Jessica Biel and Len Wiseman arriving for the UK Premiere of Total Recall, at the Vue West End, London.
David Walliams and Kate Beckinsale during a visit to College House Junior School where she unveiled a plaque in memory of her late father, Richard Beckinsale, who was a pupil at the school.
Kate Beckinsale attending the opening night of I Can't Sing! The X Factor Musical
Kate Beckinsale attending the Empire Magazine Film Awards held at the Grosvenor Hotel in London.
Kate Beckinsale attends the Metropolitan Museum of Art Gala in New York City.
Kate Beckinsale attending the British Fashion Awards at the London Coliseum, St Martin's Lane, in London.
Kate Beckinsale attending the UK Premiere of Love and Friendship at Curzon Mayfair, London. PRESS ASSOCIATION Photo. Picture date: Tuesday May 24, 2016. Photo credit should read: Ian West/PA Wire
(left to right) Matt LeBlanc, Emilia Clarke, Kate Beckinsale and Dominic Cooper during the filming of the Graham Norton Show at the London Studios in London, to be aired on BBC1 on Friday Evening.
Kate Beckinsale arrives at the Los Angeles Confidential Magazine's Annual Women Of Influence held at The Peninsula Beverly Hills in Beverly Hills, CA on Thursday, June 23, 2016.
Kate Beckinsale at the 22nd Annual Critics' Choice Awards held at Barker Hanger in Santa Monica, CA on December 11, 2016. *** Please Use Credit from Credit Field ***
Kate Beckinsale arriving at the London Film Critics Circle Awards 2017, the May Fair Hotel, London.
Photo credit should read: Doug Peters/EMPICS Entertainment
BEVERLY HILLS - FEBRUARY 26: Kate Beckinsale attends the Vanity Fair Oscar Party 2017 on February 26, 2017 in Beverly Hills, California. (Photo by Rich Fury/PictureGroup) *** Please Use Credit from Credit Field ***
Rose McGowan and Kate Beckinsale arriving for the GQ Men of the Year Awards 2018 in Association with Hugo Boss held at The Tate Modern in London.
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"I had no work visa to stay in America, so every time I left, I had to go back to Britain.
"I never knew if I would be allowed to come back in again. So I ended up having to get work in Britain because I wasn't really getting any work in America.
"It really made me question certain things about myself."
Sheen, 51, said he also found the glare of the media spotlight a struggle, adding: "That was hard particularly, because when I did do interviews or things like that for whatever projects I was working on...I just kept f****** up, I'd say the wrong thing in the interview.
"It took me a long time to learn. If there's the chance of you f****** up, just don't talk about it. And of course, people are going to want to try and get you to talk about stuff because that's how they make their career."
Changes with Annie Macmanus is available weekly on Apple, Spotify, Acast and all other podcast providers.