McCallum's father, John Neil McCallum Sr., was a theatre owner and entrepreneur, who built and for many years ran the 2,000 seat Cremorne Theatre on the banks of the Brisbane River. After emigrating from Scotland, McCallum Snr. became an accomplished musician, and was soon heavily involved in Brisbane's entertainment scene. His mother was an accomplished amateur actress who was born in England. In 1918, McCallum Jr. was born in Brisbane during
Melba
⭐ 0The Woman in Question
⭐ 5.8It Always Rains on Sunday
⭐ 6.6The Long Memory
⭐ 6.5Trent's Last Case
⭐ 5.4Bush Christmas
⭐ 5.5Smiley
⭐ 6.7Miranda
⭐ 6.3Valley of the Eagles
⭐ 6Trouble in the Glen
⭐ 5.7Forever Ealing
⭐ 6.8The Root of All Evil
⭐ 6.8Traveller's Joy
⭐ 5.7The Loves of Joanna Godden
⭐ 7A Boy, a Girl and a Bike
⭐ 4.9Three in One
⭐ 0Lady Godiva Rides Again
⭐ 5.9Derby Day
⭐ 6.5A Son Is Born
⭐ 0Port of Escape
⭐ 5.4Devil on Horseback
⭐ 0The Calendar
⭐ 6The Magic Box
⭐ 6.3Made In Ealing: The Story of Ealing Studios
⭐ 5⭐ 5