Class of '92 stars David Beckham, Paul Scholes, Nicky Butt, Ryan Giggs and Phil and Gary Neville arrived at the documentary's premiere at Leicester Square.
The former England captain attended the event with wife Victoria, and the couple's three sons Brooklyn, Romeo and Cruz.
When asked about reports that Beckham could become Sir David in the New Year Honours List, Styles replied: "Why not? He's a national treasure isn't he? It makes sense. I thought he was already."
More top news
A construction worker was crushed when a platform collapsed on them while the set was being dismantled.
Nasa's Juno spacecraft will get closer to the giant planet than any other spacecraft before.
Theresa May may be able to trigger withdrawal from the European Union without parliamentary approval.