The 'i' sound in Italian pronunciation of pizza is longer than it would be in pitsa, but shorter than peetzer.
I have a friend called Tanya - not pronounced Tan-yah, nor yet Tarn-ya, but an inbetween length of the a, sort of Tah-nya.
Controversy - the original way to pronounce this is contro-versy; con-TROV-ersy = new derivation and has been ascribed to American English, although this may not be the case.
'Amn't I', although it sounds funny and isn't much used, is more grammatically correct than 'aren't I'.
I have noticed that Scots in particular tend to preferentially use "you're not" instead of "you aren't".
As another poster commented a few pages back, a lot of these gripes are about regional variations - that's a bit off, IMO. Just because you don't talk like that where you come from, doesn't make it unacceptable for others to do so in their region.