From the article:
"Harry Potter fans could be about to delve into the earlier world of Severus Snape in a new fan movie.
The complex fictional character, a mainstay in JK Rowling’s best-selling wizardry books, will be the focus of Severus Snape and the Maurauders following a Kickstarter fundraising campaign. [...]
The first trailer from Broad Strokes Production reveals the film will be set “before ‘The Boy Who Lived’ was born” and draw heavily on the experiences of Potter's parents at Hogwarts."