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?