US or UK version for these movies?

[Kyo28]

First of all, I have a Japanese PS3 as BD-player (so that's region A, NTSC)

I'm thinking of getting some movies from region B, which are region free, as I can get them cheaper from the UK than the US. However, I was wondering if I'll have problems with:

• Less quality (like the UK version of Hellboy II has less PQ than the US version)
• PAL related issues (some BD's have 480p bonus material or menus in PAL, which won't play on my PS3 ... or so I'm told)

Here's the list of movies I'm considering right now:

• Indiana Jones & the Cristal Skull
• Serenity
• Wanted
• Monkey Magic (UK version of the Japanese movie Saiyuuki - preorder)
• Mamma Mia
• The Chronicles of Riddick
• Blade Runner
• Karas (anime - preorder)
• National Treasure 1 & 2
• The Mummy Trilogy
• Zatoichi

Any feedback would be much appreciated!