Pre-production for the film included teaching the four actors how to ice skate for the hockey scenes. Mark Wahlberg and Garrett Hedlund were the only leads that already knew how to skate.
Bobby: Yeah, get him Jerry! The gorgeous black ladies of wrestling! Nitro and Midnight! Nitro's got Midnight in a headlock! Get him, Jerry! Midnight's trying to be up, but Nitro's on him!
... Evelyn drives up to the store? "Somebody To Love" by Jefferson Airplane.... Bobby drives back into town (the opening credits)? "Trouble Man" by Marvin Gaye.... The brothers drive up to the home? "Cloud Nine" by The Temptations.... The brothers are back at home / Bobby's bathroom breakdown? "I Wish It Would Rain" by The Temptations.... Angel and Sofi run from her boyfriend? "What U Gon' Do" by Lil Jon & The East Side Boyz.... Bobby tells Angel that Sofi can't stay in the house? "Dancing Machine" by The Jackson 5.... Hockey game? "Shake Me, Wake Me (When It's Over)" by The Four Tops.... Victor Sweet's introduction? "Papa Was A Rolling Stone" by The Temptations.... Bobby, Angel, and Jack confront Evan at the bowling alley? "Jesus Walks" by Kanye West.... Green confronts Fowler in the pool hall? "Smiling Faces Sometimes" by The Undisputed Truth.... Cops beat up the brothers during their interrogations? "Knucklehead" by Grover Washington Jr.