So rather than spend a fortune on special disguises, plastic surgery and prosthetics, the secret of being a successful counter-intelligence agent is loads of Bryclream, a pair of thick-set spectacles and a fawn, knee-length, mac. That's what puts the c into overt! That theory sort works for Matt Damon here with this lacklustre drama set around the time in world history when the American government realised they needed to gather intelligence about whom their potential 20th century foes might be. He is "Edward Wilson", who after being sworn into some top secret masonic style of society at…