PotterFacts 95/404 | The Chamber of Secrets
"The script of THE CHAMBER OF SECRETS originally said that Hermione would hug both Harry and Ron in the final scene. The 11-year-old Emma Watson was embarrassed about having to hug the boys in front of the entire cast, so Chris Columbus allowed her to change the scene so that Hermione just hugs Harry and then shake Ron’s hand. Watson stated in an interview that she kept letting Radcliffe go too quickly, so the film was frozen for a few seconds to make the hug look like it lasted longer. Her hesitation with Ron is also taken by fans as a precursor to the relationship that will develop between the two characters."