Colin Farrell and Jeff Bridges became friends by singing together.
Bridges, a four-time Oscar nominee who plays the role of alcoholic country singer Bad Blake in "Crazy Heart," says the Irish actor was a pleasure to act alongside.
"He was great to work with," Bridges says. "We approach the work in a similar way and got along great. I've admired him. The first time I saw him was in 'Tigerland', and I've been keeping up with his career.
"Singing together is a great way to strike up a relationship with your fellow actors, when you harmonize. That all fell into place really well."