Meanwhile, Lewis plays a young man who has a liaison with an older woman. The actor, who played loyal Neville Longbottom in the Harry Potter films, suggested that Unfaithful could also be seen as a meditation on sex. ‘What does it mean to different people?’ he said.
Lewis said that because his first acting experience involved playing one role: Neville — for a decade — he likes to take on as many characters as possible. Which is why he did Ripper Street for just two seasons; appeared in the last series of the BBC’s brilliant Happy Valley; and enjoyed a few days on a new film, Terminal, with Margot Robbie.
But it’s clear the Harry Potter film cast is still very much a family. Lewis said that after Emma Watson saw Harry Potter And The Cursed Child at the Palace Theatre, she texted him, telling him he must see the play. And so he should.