The Glasgow smile has been inflicted on characters in multiple films and television programs, including Green Street, House of Tolerance, The Krays, Sons of Anarchy, Pan's Labyrinth, and 2008's The Dark Knight, in which Heath Ledger as the Joker both has the scar and carves it on numerous victims.
The fair has been featured in the films Hugo, The Krays, The End of the Affair and 28 Weeks Later.
Both wrote best-selling books about their lives and, in 1990, a full-length biographical film entitled The Krays was released (featuring real-life brothers Martin and Gary Kemp as the Kray twins).