Check out what happened when the premiere finished and the group hit London with their showbiz pals.
One Direction Discuss Their 3D Movie This Is Us With Max On Capital - Video
The 'Little Things' four-piece join Max on Capital to celebrate the upcoming release of their new 3D concert movie This Is US.
One Direction open up to Capital FM presenter Max all about their new movie This Is US, having support from their families and Zayn's engagement in this week's show.
The 'Best Song Ever' four-piece spoke to Max this week fresh from the world premiere of their new 3D concert movie, and say it was "really nice" to have their families and friends around them for the big day.
"It was unbelievable, and definitely one we won't forget," Niall Horan explains to Max. "It was a great night."
The UK boy band stars also explain their best and worst things about the new documentary film, Zayn opens up about being engaged to Little Mix star Perrie Edwards and the band reveal which member makes the best cup of tea.
Keep it Capital every Sunday from 7pm for Max's show.
Watch One Direction chatting to Max on Capital below: