The film, which will be the first of a planned five, stars Eddie Redmayne in the lead role of Newt Scamander alongside Colin Farrell and Katherine Waterston.
It is based on Rowling’s book of the same name and set 60 years earlier than the novels about the boy wizard, in 1926 New York.
Johnny Depp has a cameo in the film and will take on a larger role opposite Redmayne in the sequel.
The cast have already said they were unaware of Rowling’s plan to make five films in the series, before she revealed the news to fans.
Fantastic Beasts And Where To Find Them is released in UK cinemas on November 18.