Like their dead father, half-brothers Raymond (Ewan McGregor) and Ray (Ethan Hawke) are both equally devoid of life and energy, making it tough for Raymond & Ray to get any sort of a running start on the plot, which was pretty meager in the first place.
Also, there's something about a story revolving around two men with the same name that just pisses me off.
Anyway, the premise is this: two half-brothers reunite (though not particularly gracefully) after their father, Harris (Tom Bower), dies, and given that he wasn't a great father in the first place, the two slog through the few loose ends that need to be tied up before putting him into the ground. And I do mean that literally, as their father left them with the absurd task of digging his grave by way of shovel, meaning that about half of the entire film is just Hawke and McGregor shoveling up a bunch of dirt.
Listen, plenty of movies are successful in fully centering around dialogue, but pulling that off is a lot easier said than done. For one, the dialogue has to actually be compelling enough to power through the fact that the movie isn't relying on outside factors to carry it to the finish line, and this one just doesn't have the oomph factor to make that happen.