Great "what if" idea with a seriously great cast but they are given absolutely nothing to work with and just phone it in; I recon they should all club together to take out a contract on the writers, producers, and director.
The plot is a cliche from beginning to end trotting out EVERY disaster movie trope. The plotting you could pilot the Titanic through and scripted dialogue is absolutely woeful. The characters are embarrassing stereotypes of the genre. Still watched it all, some of the scenes of London flooded are interesting.
