Question: The actor that plays Ian Thomas in "Pretty Little Liars" also starred with Stanley Tucci and Dana Delany in a 2003 film adapted from a novel by what author?
Sentence (from "List of Pretty Little Liars episodes"): One year later, the estranged friends are reunited as they begin receiving messages from a mysterious figure named "A" who threatens to expose their deepest secrets, including ones they thought only Alison knew.
Relevant evidence: No