Nigel Cole (Calendar Girls) will direct The Secret Diary of Adrian Mole, based on the bestselling British young-adult book by Sue Townsend. Fortress Entertainment and Ruby Films are producing.

Variety says the novel, which spawned a slew of sequels, two TV series and a West End musical, concerns the trials and tribulations of a 13¾-year-old British teen searching for his identity and some degree of normalcy in his highly dysfunctional, working-class family.

Fortress' Brett Forbes and Patrick Rizzotti are producing with Ruby Films' Alison Owen.

Producer Diana Leszczynski brought the book and an adapted screenplay by Bradley Wood to Fortress.