yeah I'm concerned about the lack of ministry - we don't know fudge has resigned or anything, and also, what about Bill and Fluer? the Deathly Hallows symbol they find out about being Grinde-what's-a-who's at their wedding from Luna's dad, and at that wedding we find out that Scrigmore dies. :/ that is a bit of a concern as well.
and Re: Ms 15 being confused, yeah I can understand that, the timeline does seem a we bit weird.
but I thought Snape was at he party because in the book he does throw Malfoy out, and Potter listens in on a conversation like in the movie?
Also, Tonks was lame, and that makes me really sad

and my friend who screamed >so loud< T_____T when the hand grabbed Harry was like "WHERE THE FUCK IS DRACO'S UNIFORM?" for half of it xD
another think me and the squealing friend thought might be weird was... when Harry hides the potions book, he's meant to know where to find it again because it's past the bust of some old witch wearing a weird crown, which is the diadem of ravenclaw... so how's he gonna know it's there?
and the lack of burial I thought was strange as well, I think that could have had a good opportunity, to quick give a mention of what's happened in the ministry, like Fudge talking to Harry and introducing Scrigmore, and maybe giving a five minute walk, that's like the one they have at the start of the book at The Burrow? I dunno. But he is meant to be buried with it, because they break into the tomb to take it... although there's an obvious set up for the wand being important with Harry in Dumbledore's office at the end.
and uhhhm Felix potion Harry = theeee besttttt