Martin Freeman didn’t see anything wrong with his age gap with co-star Jenna Ortega in “Miller’s Girl.” After all, that was the point of the plot. “[It’s] grown-up and nuanced. It’s not saying, ‘Isn’t this great?’ ” he told UK’s the Times in an interview published Saturday. “And that’s a shame,” he went on. “Are we gonna have a go at Liam Neeson for being in a film about the Holocaust?” The English actor, 52, plays Jonathan Miller in the black comedy-drama, the teacher of Ortega’s Cairo Sweet, his 18-year-old student. The pair get entangled in an inappropriate relationship after...