I'm at work, so if someone caught me watching this feature length GTA IV Machinima for two hours, I don't think it would go down too well. But if you have the time and the inclination, this is one of the most finely polished, well conceived example of Machinima we've ever seen.
It took Director Mathieu Weschler two years to create this, so maybe it would be worth investing 88 minutes watching it. It's incredibly detailed, brilliantly edited and surprisingly engaging.
Good job Mathieu!