Continuity: While Echo is firing two rounds into the side of beef, the cigar falls out of the man's mouth twice.
Continuity: In the slaughterhouse fight scene, the overhead shots are not consistent with the eye-level camera angles.
Audio/visual unsynchronized: In the scene at the lake, when Pilo jumps out of the tree, he stands up and does a Tarzan impression. The sound is not heard until the view cuts to looking across the lake.
Revealing mistakes: When the officer falls down at the lake and lands face to face with the rattle snake, you can clearly see the glass that separates the actor and the snake.