Padma Patil as Gryffindor?

[verosomm]

OK, I just noticed this in the movie for a second or two, but 
perhaps my eyes deceived me.  In Lupin's class, when the kids are 
about to go against the boggart for the first time, near the front 
of the group are 2 Middle Eastern girls, one of whom is definitely 
Parvati, as she faces the boggart a few minutes later, and the other 
who looks similar, if not identical, to her, excepting the fact that 
the second one has a few pieces of hair pulled back in a barrette 
and Parvati has hers in a ponytail.  

The reason I did a double-take is not due to the fact that the books 
never have Ravenclaw/ Gryffindor classes together: I know the books 
are not the movies... but because Padma is wearing 
Gryffindor "accessories" (crest, tie, etc.) on her school uniform, 
just like Parvati.  At first I thought maybe the wardrobe people 
wanted to further instate the fact that the 3 houses besides 
Slytherin tend to get along (all non-Slytherins were in one bunch, 
close to Lupin; all Slytherins in their own bunch, off to the other 
side) but behind the twins and Gryffindors are quite a few kids 
wearing blue accessories (Ravenclaw colors).  

Did anyone else notice this?  Is it a movie Flint or something 
more?  I think the Patils are going to play further into Books 6 and 
7 besides just going to the Yule Ball and joining the DA in Books 4 
and 5 respectively, or at least possibly they switch places from 
time to time?  I also noticed, tying into Cuaron's intrique with 
reflections, that the Patils, for their Hogsmeade visit, are dressed 
identically, something I don't think 13-year-old girls would do in 
RL.  Also the Weasleys when they are building the snowman are at 
least wearing matching hats; I don't remember about the actual 
clothes.  I don't have too many actual theories on these issues, but 
thought they might be significant nonetheless and thought someone 
else might.

Veronica