What anime could make a good live action movie?

I would say One Piece or bleach

 

Not too sure, I'd love to see the Death Note attempt though.

 

Actually, there is two Death Note live-action films.

 

Yep, and I suggest any Death Note fan watch them just to see how everything changes. Plus L is kind of amazing.
I think Ouran High School Host Club would be among the easier ones to make live action mostly through the lack of extremely flashy special effects needed. I might otherwise say something like Bleach, except for the incredible amount of extra work it would need.
... I've seen a live action DBZ before. It gave me nightmares. *shudder*

 

Hm... I'm going to have to go with Ouran Highschool Host Club.

 

I think death note or blood plus or fullmetal ^^