Nice chapter.
Why do I think Dumbledore is behind this, as I can't think of why Voldemort would even know of Mary Poppins.
Nice job with Harry and gang getting to know the Beaxbatons girls. Also liked the inclusion of Angelina and Alicia and there views of Harry being more relaxed in this new environment.
Can't wait to see what dates Harry comes up with for the others, nice shot with Victor and Fleur, although we don't know much about your version of him he's a well known sports celebrity and she is a beauty and heiress of Delacour. And if he tries something Harry will launch him into orbit:).
Why do I keep having flashbacks of the Teen Titan's cartoon episode where Robin is blackmailed into taking that girl to her prom:).
Considering how the press reacted to Krum it should be interesting when they do background research on Harry for the Tournament and descover Chef Harry.
Can't wait to see what the events will be, whether you go with canon or originals.
More soon please.