Total Faecal
A hodge podge of various (better) movies.
Not entirely sure what the water-logged cities were about (or how they were even pertinent to the plot) other than try tart up an already ropey product with some CGI.
It's as if Warner Bros. didn't trust Jackson to enough to 'lead' a non-comic-book movie, and the cautious 'penny-pinching' was all up there on screen for all to see/snore to.
However, none of the resulting dullness would have mattered, if the movie had a reasonably good plot (but even that felt disjointed, hastily rewritten and under-nourished)
Which (ironically) results in a movie that no-one will be keen to revisit (let alone reminisce over)