Foulkes has written and directed several short films including, Dumpy Goes to the Big Smoke (2012), which won the prize for Best Director at the Sydney Film Festival and was nominated for two AACTA Awards (formerly the Australian Film Institute Awards, also known as the AFI Awards) in 2013; Florence Has Left the Building (2015) starring Jacki Weaver, which premiered at the Melbourne International Film Festival and won the 2015 AACTA Award for Best Short Fiction Film; and Trespass which had its International Premiere at the Toronto International Film Festival in 2016. In 2013, Foulkes co-wrote the short film Eugene for the Intel and W Hotels Four Stories competition. She is the only female member of the Australian film-making collective Blue-Tongue Films.