In 2015, she had a supporting role in the Oscar nominated film Brooklyn. In 2016, Rickards was cast in the movie Slumber, alongside Darby Stanchfield and Meaghan Rath. In the same year she was also cast in Aisha Tyler's feature film directorial debut, Axis, which raised funds through a Kickstarter campaign, and co-starred, alongside Josh Dallas and Tom Cavanagh in the super-hero themed short film Sidekick, directed by Arrowverse alum Jeff Cassidy. In 2017, she starred alongside Jana Winternitz and Matthew Glave in the Michael Gallagher directed comedy film Funny Story. The film premiered at the 2018 Slamdance Film Festival. It went on to win the Audience Award at the 2018 Sonoma International Film Festival.