Sometimes it's a character you liked that attracts, like the role Philip Davis played in Midsomer Murders. Other times it's to see a great star like Helen Mirren.
Whatever the reason, it's always good to see a film based on a Graham Greene novel, like The Third Man, This Gun for Hire, The Quiet American, and many more.
A young Richard Attenborough played in this movie in the 40's, here is falls to Sam Riley (Control, Maleficent) to play the lead. He is capably assisted by Andrea Riseborough (Oblivion, Shadow Dancer), as the waitress he marries to keep her from testifying as a witness.
A good neo-noir with contributions from William Hurt and Nonso Anozie (The Grey, Game of Thrones).