Alison Phil, who was in Woody Allen's "Midnight in Paris," auditioned to play King, Variety said.
"Girls Like Us," which would be produced by Sony Pictures and Di Bonaventura Pictures, has yet to be greenlit, though production has been scheduled to start later this year.
Swift made her acting debut in romantic comedy "Valentine's Day" and most recently voiced a role in "The Lorax."
Rosie O'Donnell unveils nearly 50-pound weight loss
Disney's 'Jessie' to feature network's first engagement