Bridget Jones’s Baby is the third outing for our heroine as played by Renée Zellweger, whose cosmetic work to face has received more media attention than the film itself, but we will try to counteract that here. So, on this occasion, Bridget finds herself pregnant but does not know if the father is our old friend, uptight lawyer Mark Darcy (Colin Firth, who is not as young and dewy as he was at, say, 32, perhaps because he’s now 56), or the American dating magnate Jack Qwant (Patrick Dempsey, 50, who may have let himself go a bit, but then...