“Sinkhole” (** out of four) was a pretty mediocre disaster thriller about a man with severe PTSD (Rhys Crane) who has to overcome his fears and venture outdoors to save his sister (Katarina Fuller) when a series of sinkholes appear throughout the city and threaten to cave in. Not bad as these things go and fairly fast-paced but hindered by low budget and production values. Maybe it’s time to give disaster films a rest for a while.