The dated feeling was not only in the small details. Lesley wore a pair of acid wash jeans, the anchor of the episode firmly in 1988 (when it was first shown), but she spoke with an accent that sounded more from the 1950s. I get that she was playing an actress putting on an actressy voice, which has been progressively stripped, but it was still not quite right. And then there was the central scenario, in which Lesley has been thrown into a kind of soft porn film. Sorry to say, but the idea of soft porn now seems strangely quaint.
Julie Walters has been a decade of more that Came when she played this role in the original broadcast. She gave him the pathos and the comedy, starting out as a bubbly, optimistic; Comer played Lesley as grief-stricken from the start, so there is little sense of the character down.