Oda lied to us
In chapter 49, Oda listed Nami's official sizes as 34-22-34.
Nami is also written as saying that things aren't going to change size.
Obviously this was not the case after the timeskip.
Undeniable proof that gOda has lied to our very faces.
Maybe if Sanji can tell us Emily Rudd's official sizes we can determine if the casting was actually accurate.
Otherwise, live action is LITERALLY unwatchable.
^/s