Yeah, so I bought this film on DVD a few weeks ago.
It's about an 18-year-old girl, Ellie Turner, who goes to study fashion at a London uni. She likes the fashions and culture of the 60s. While staying at her student room, she discovers a way to somehow go back in time to the 60s, where she meets a glamorous singer Sandie, played by Anya Taylor-Joy. It's lovely and glamorous at first, but gets darker, with Ellie's state of mind deteriorating more and more.
The two main characters, Ellie and Sandie, are well-acted.
The sound track is excellent, too.
The only gripe I have with this film is the ending - I think there may be one twist too many.
But all in all pretty damn good.
https://www.youtube.com/watch?v=AcVnFrxjPjI