“If there's one thing I know, is when someone is lying. A man in my position, that's all he has to go on. To know a lie when he hears it. It's the difference between life and death. Your own. Someone else's.”
Ben Kingsley - The Rabbi

“You know how I can tell you're lyin'? I can smell the bullshit coming out of your mouth.”
Samuel L. Jackson - Derrick Vann

“You're a good grifter. It's hard to tell when you're lying.”
Dustin Hoffman - King

“I smell bullshit.”
R. Lee Ermey - Sheriff Hoyt

“Everything that seems clear is bent. And everything that seems bent is clear. Trapped in reflections, you must learn to recognize when a lie masquerades as the truth, and then deal with it efficiently, dispassionately.”
Sir Michael Gambon - Dr. Fredericks