EXCLUSIVE: Colin Callender’s Playground (Wolf Hall, Howards End) has acquired the television rights to award-winning documentary The Dog to develop as a drama series.

Directed by Allison Berg and Frank Keraudren, The Dog tells the extraordinary back-story of the late John Wojtowicz, the bank robber whose antics inspired Al Pacino’s character in Sidney Lumet’s 1975 classic Dog Day Afternoon.