“Overrun” (** out of four) was a murky international espionage melodrama about a former military extractions expert (Omid Zader) who learns that his only hope to save his sister and others in his family is to track down a mysterious briefcase but soon finds that various underworld figures (Bruce Dern, Nicholas Turturro, and others) and the police (William Katt, Johnny Messner, and Haley Strode) are on his trail. Fairly fast moving but film itself is “overrun” by too many characters and plot complications and it soon bogs down. Much of the rock-solid supporting cast are wasted.