The movie has to be more than 15 years old. I 've watched only the first half hour and that was a long time ago, so some of the details are fuzzy.
The movie is about a hardnose sales-rep recently transfered to Pepsi headquarters in Australia. His job is to find geographic regions where sales are low and then try to boost them. He finds that sales are really low somewhere in the middle of the desert (doh!) and then he travels there to see why is that. The last scene I remember is of the salesman riding a Jeep in the desert. That’s where I got really bored and decided to watch the grass grow instead.
For some reason this stupid movie popped in my mind after all those years. I tried some IMDB searches but couldn’t find anything. I won’t sleep tonight if I don’t know the title!