One Direction star Liam Payne said making the boyband's first feature film This Is US was "nerve-wracking" but there could be a follow-up if it is a hit.
Payne said: "I think at the moment we just want to see how this one goes to be honest with you.
"It's so nerve-wracking making the film and stuff. I was thinking the other day when we sit in the premiere and everybody is actually watching it on the big screen it's going to be amazing but I don't know, maybe we'll see how this one goes, see if people like it."
One Direction have told ITV News that although the comparisons with The Beatles are "flattering", it was not something they agreed with.
Directioners descended into London's Leicester Square in their thousands this evening, for the world premiere of One Direction: This is Us.
One Direction's first movie premieres today ... but what does it have in store for the boyband's fans?