TWO of the guests on the sofa in The Graham Norton Show have something in common other than being Hollywood movie stars. Michael Douglas and Will Smith share the same birthday – September 25 – although obviously not the same year of birth.

Douglas entered the world in New Jersey on September 25, 1944, while Smith followed 24 years later.

Host graham Norton was five when Douglas made his film debut in Hail, Hero!, a little-remembered drama about a college student and the Viet Cong.

That vanished, as did his follow-up movie Summertree. It took the 1972 TV cop series The Streets of San Francisco to make his name. A year before quitting that show, he turned to producing and gave the world One Flew Over the Cuckoo’s Nest, which won five Oscars.

Fast forward to 1990, and while Douglas was resting from work on Black Rain and The War of the Roses, 22-year-old rapper Will Smith made his debut in The Fresh Prince of Bel Air on TV. That series ran for six years and in between seasons, he made films such as Made in America, Six Degrees of Separation and Bad Boys.

However, it was alien invasion blockbuster Independence Day in 1996 that confirmed his status as an A-list star.

Smith scored another home run a year later with the first of three Men in Black movies, and in 1998 starred in slick thriller Enemy of the State.

Smith is bringing someone with him to sit on Norton’s sofa – Jaden Smith, his son and co-star in new sci-fi thriller After Earth.

Douglas will be chatting about his turn as Liberace in new biopic Behind the Candelabra, his latest collaboration with Traffic director Steven Soderbergh.

Plus, Bradley Cooper and Heather Graham are in town to promote blockbuster comedy The Hangover Part III. Continuing the movie theme, child star-turned Spring Breakers bad girl Selena Gomez provides the music.