The pair star in 'George & Tammy,' a mini-series that premieres Dec. 4 on Showtime.
The Jonas Brothers singer also dished about his end-credits ballad "Not Alone."
The two actors both star in Disenchanted, the sequel to 2007's Enchanted, with Amy Adams and Patrick Dempsey.
The former RSO Records president on the Bee Gees-fronted album that elevated disco's popularity.
"People are making these jokes about ours being the PC 'Snow White,' where it’s like, yeah, it is — because it needed that," the actress says of Disney's upcoming film.
The bomb of the weekend is David O. Russell’s star-packed film 'Amsterdam,' the star-packed film in which Taylor Swift has a cameo.
"I think she'll do something incredible with it," Robbie said of Gaga potentially playing the former Arkham Asylum psychiatrist in 'Joker: Folie à Deux.'
More than any other film franchise, the long-running James Bond series has a rich musical history.
"It is stunning when you've got someone with a beautiful voice there, standing right next to me," the actor said of his pop star castmate.
The project marks Smith's first major film since the infamous Oscars slap.