I put 'epic' in inverted commas because there's something about the use of the phrase 'these lot' and a Tallaght accent attempting a Hollywood movie trailer-esque promo that just doesn't sound quite right. I think Robbie may need a much deeper voice if he's going to have any future in the voiceover business.
That being said, it's be pretty funny to see him do one of those honest movie trailers.