J.K. Rowling has insisted that the stage play, “Harry Potter and the Cursed Child Parts 1 and 2” will not find its way to the big screen. However, Warner Brothers may have other ideas. The big media company has filed for Cursed Child trademark in the U.K. The move has fueled speculation that, in the fullness of time, the further magical adventures of Harry Potter and his son will find its way to the big screen. The play takes place 19 years after the events of the original novels and finds Harry as an overworked bureaucrat at the Ministry of Magic, with a wife and three children, including one, Albus, who suffers from the family legacy.

To be sure, the trademark covers just about every marketing spinoff that Cursed Child could generate, including video games and action figures.

And Warner Brothers could always film a performance of the play to be shown at movie theaters in North America and other places for the benefit of people who can’t get tickets.

On the other hand, just about every famous play ever produced has wound up on the big screen eventually, from musicals to Shakespearian tragedies. Sometime in the future, perhaps, after the play has completed its run in London and then the inevitable Broadway production, Rowling might be persuaded to sanction a film version.

Besides getting Rowling’s consent, a number of questions surround a possible film version of Cursed Child. Does the production try to get the old band of Daniel Radcliff, Rupert Grint, and Emma Watson back together, or does it go with the actors who are starring in the stage play? That cast includes a black Hermione, which caused some controversy but received Rowling’s blessing.

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Depending on when the movie gets filmed, the original movie cast may still be too young as the characters are all middle aged in the stage version.

In the meantime, the script of the play is due to be released in print and digital on July 31, 2016, which happens to be Harry Potter’s and J.K. Rowling’s birthday. The date is the day after Cursed Child is due to premiere in London’s West End.