The movie stars Thomasin McKenzie as the girl in modern times and Anya Taylor-Joy as her time companion, the supporting cast include Matt Smith and Diana Rigg.
As mentioned the movie is directed by Edgar Wright who is probably best known for The Cornetto Trilogy, Shaun of the Dead, Hot Fuzz and The Worlds End.
Movie Synopsis
An aspiring fashion designer is mysteriously able to enter the 1960s, where she encounters a dazzling wannabe singer. However, the glamour is not all it appears to be, and the dreams of the past start to crack and splinter into something far darker.
BBFC certificate breakdown.