Sex sells, we're told, and that used to be paramount in movies. Erotic thrillers were a hugely lucrative sub-genre in the 1990s, spurred by Fatal Attraction, Basic Instinct, Disclosure and basically anything Michael Douglas could bonk to the top of the box office. Although February is usually more of a dumping ground for the post-Oscars comedown, last month was nearer to an Ann Summers party at the multiplex than any for years.
There was the growed-up mega-hit 50 Shades of Grey and the old-fashoned JLo-starring erotic potboiler The Boy Next Door, and right at the opposite end of the scale, there was the subversive horror It Follows and Peter Strickland's artful emotional fantasy The Duke of Burgundy. Each of them approaches sex differently, but they all hop on the good foot and do the bad thing to some extent.