Emma Watson can remember the moment that she "fell in love" with her 'Harry Potter' co-star Tom Felton.

The 31-year-old actress — who played Hermione Granger in the wizarding movie franchise — reminisced about her crush on Tom, who portrayed villainous Draco Malfoy, on the HBO Max special Return To Hogwarts which saw the cast reunite to celebrate the 20th anniversary of the first movie Harry Potter and the Philosopher's Stone.