The soundtrack is unbearable

And the editing of the film is really bad too. A small conversation, cut to traveling, shots of landscape/city, ...repeat...repeat...repeat...
I gave it 30 min, and even though the two guys are very interesting, I had to stop watching.

I agree.

I also found a lot of the Australia shots to be almost melancholy. When Sir Dawkins was on the couch doing the phone interview I almost felt like I was watching reality TV and there was a serious personal conversation taking place. And then there is a standing shot of the couch empty after Sir Dawkins hangs up.

And if you are going to play REM right after showing a group of angry Arabic men might I suggest "Shiny Happy People" rather than "Orange Crush"!