if you ever get another chance of redubbing that first scene this is the kind of dialog i thought of on my spare time that might fix the shitty dialog (mesa) and make jar jar a lot more tolerable
jarjar: you saved my life, thank you
quigon: you almost got us killed are you brainless?
jarjar: (bragging like it's a cool thing) well i speak (or) i speak don't i?
quigon: the ability to speak does not make you intelligent now go on
jarjar: no way i'm staying, sticking with you as a humble servant is a whole lot safer.
quigon: that wont be necessary
jarjar: well my instinct tells me otherwise
(battle droid fight)
jarjar: that's twice you saved me
obiwan: whose this?
quigon: a local we have to move before more show up
jarjar: more? hey wait a minute!
that's the idea i have so far. as you can see i just changed the dialog so it isn't that far off from the original dialog and with a good voice actor with the right accent or no accent, jarjar might come out a whole lot better character than he is now.