Harry Potter and the Prisoner of Azkaban games loosely based on "Harry Potter and the Prisoner of Azkaban" were also released for several platforms, and most obtained favourable reviews. Harry is back at the Dursleys for the summer holidays, where he sees on Muggle television that a convict named Sirius Black has escaped, though with no mention of what facility he has broken out of. Harry involuntarily inflates Aunt Marge when she comes to visit after she insults Harry and his parents. This leads to his running away and being picked up by the Knight Bus. He travels to the Leaky Cauldron where he meets Cornelius Fudge,
Harry Potter a cause-and-effect relationship, there is a clear correlation, and it seems that Harry Potter's cultural impact may be stronger than just a fandom bond. Many fan fiction and fan art works about "Harry Potter" have been made. In March 2007, "Harry Potter" was the most commonly searched fan fiction subject on the internet. At the University of Michigan in 2009, StarKid Productions performed an original musical parodying the "Harry Potter" series called "A Very Potter Musical". The musical was awarded "Entertainment Weekly"'s 10 Best Viral Videos of 2009. The sport Quidditch, played by characters in the "Harry Potter" series, was