Jennifer Merley was originally going to play the role of 'Scarlet' but had to drop out on short notice, putting increased pressure onto the production team to find a replacement and complete the project within the 24 hour time limit.
Calum J. Rosie and Kirsty Elizabeth Gaul had never met until Jennifer Merley dropped out, and was chosen for the fact she was his neighbor.
The Smashed Wine glass was borrowed and was intentionally dropped but unintentionally smashed.