A fun and games thriller, “The Other Woman” turns on intrigue about Russian espionage, and links present-day Russian attempts to sabotage Western democracies to the machinations years ago by, arguably, the most notorious double agent of the 20th century – the head of Britain’s intelligence service, MI6, Kim Philby. In fact, it’s now exactly 30 years since the unrepentant Philby died, in Moscow, having fled there in 1963 once he was identified as a member of the infamous British spy ring, The