Corrected entry: When Louis is calling the man with the plane, he only dials 2 numbers and the phone in the man's pocket starts ringing.
Corrected entry: When they are on the plane to Australia, Louis opens the package and finds the 50 grand. Yet it is American money. Sal was paying Mr. Smith to kill the guys, yet Mr. Smith is Australian. American money would be pointless in Australia if Mr. Smith got paid.
Correction: Converting the US dollar to the Australian Dollar is 1 US to 1.42 Australian. and he could go to ANY bank and exchange it. Banks all over the world exchange US money for their native money every day.
Correction: Louis could have had the number on speed dial in case he lost the number, therefore only pressing two buttons would still have called the guy.