The film is called Medusa’s Ankles, and the director is Bonnie Wright – better known to tens of millions as Ginny Weasley in the Harry Potter film series.
Wright, 27, bears little resemblance to the pale-faced schoolgirl we last saw settling down to raise a family with Harry Potter.
Isaacs, in her new film, is another Potter regular, having played Lucius Malfoy in six of the films.
The 20-minute film is showing over three days in the salon, which will be open for normal hairdressing operation throughout.