If you don't know the Coogan and Brydon duo, or haven't seen the other films, you have no idea what to expect before the movie. I assumed there would be dry and sarcastic British humour. I was right - but for a combined total of perhaps forty seconds. The movie is an hour and a fifty minutes long.
The two travel around Greece to locations associated with Odysseus from the epic poem by Homer. But that's the extent of it, and only provides the two the chance to speculate briefly on the stories associated with the current region before they go back to talking over each other, and doing slightly above par impressions of dated celebrities.
For the most part the impressions, jokes, and stories were cringy and incredibly offhand and dull. The two trying to out-do each other is not entertaining to watch at all...
Avoid the film unless you like the duo or can put up with them for a couple hours of Greek landscapes.