Question: Name the 2010 American biographical sports drama film directed by David O. Russell, starring Erica McDermott as Cindy 'Tar' Eklund, the lead character's sister?
Sentence (from "The Fighter"): The film centers on the lives of professional boxer Micky Ward (Wahlberg) and his older half-brother Dicky Eklund (Bale).
Relevant evidence: No