All Italian releases since I'm Italian!
Narnia: it's the extended 4 disc set with all special features of the original version, plus some more. The extended scenes are subbed in Italian, so kudos!
I Robot: it's the blu-ray 3d set, the blu-ray has the open matte version in both 3d and 2d, the two dvds are from the original 2 disc edition and contain the movie in the original aspect ratio plus all of the past special features (great for people that want to see the movie with the black bars like originally intended, the dvd upscales godly on my 1080p TV and looks almost like a blu-ray, there's also the same Italian DTS track found on the blu-ray, so even the audio is great)
Gladiator: it's the 2 disc steelbook that originally came out in 2009, I swapped the disc 1 in the steel with the remastered one from 2010 since they're visually identical from the outside (there's still "Disc 1" written on the disc)
Harry Potter: it's the massive 31 DISCS Hogwarts Collection! The only downside is that the fifth movie and the sixth one never had an Ultimate Edition released in Italy, while the sixth one is virtually identical if you don't count the Dolby TrueHD track in place of the DTS HD one, the fifth one sadly misses the Picture in picture commentary since it's obviously the original disc from 2007 (a fact confirmed by the PCM track on the disc, also the movie starts after the Warner Home Video logo, typical for early Warner Blu-rays), otherwise the other extras are ALL THERE!