The nepo baby who made good: Rob Reiner on Trump, family – and his brilliant, beloved movies

Where to even start preparing for a Rob Reiner interview? You could rewatch his classic films, of course, namely that phenomenal eight-year streak that started with This Is Spinal Tap in 1984 and blazed through The Sure Thing, Stand By Me, The Princess Bride, When Harry Met Sally, Misery and A Few Good Men. But even that is barely scratching the surface of a career that first got going in the late 1960s. What about his years as a household name in 70s sitcoms, or his famous comic actor father, Carl, or his unique childhood, in which Mel Brooks and other entertainment luminaries would be frequent guests in the house? And what about the political activism that saw him play important roles in overturning the same-sex marriage ban in California and funnelling higher taxes on cigarettes into programmes for young children and prenatal care?

And, of course, what about the stuff he’s still making, because at 76 Reiner is showing no signs of slowing down. There’s a Spinal Tap sequel in the works, not to mention the reason he’s speaking to me today: a documentary about the rise of Christian nationalism in America. God and Country is chilling but vital viewing, dissecting a movement that has infiltrated American politics and the Republican party to such a degree that Reiner believes it could soon bring about the end of democracy in the US – and potentially the world. Does he really mean that?

“Yes,” he says without a pause when we connect over a video link from New Orleans. “The question at this election is: do we want to continue 249 years of self-rule and American democracy? Or do we want to turn it over to somebody like Donald Trump who has said that he wants to destroy the constitution, go after his political enemies and turn