The film stars Matthew McConaughey (Dallas Buyers Club), Hugh Grant (Four Wedding and a Funeral), Collin Farrell (Widows), Henry Golding (Crazy Rich Asians), Michelle Dockery (Downton Abbey), Charlie Hunnam (Pacific Rim), Jeremy Strong (Succession) and Eddie Marsan (Sherlock Holmes).
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The Gentlemen (formerly titled Toff Guys) follows American ex-pat Mickey Pearson (McConaughey) who built a highly profitable marijuana empire in London.