Continuity mistake: Beck walks into a bar in the middle of a jungle and soon engages in a conversation with Mariana who is sitting at the end of the bar nursing an orange juice/soda while reading a book. She almost finishes her drink when Beck complains to her that where he comes from "there are bartenders." She then moves over to the bar, taking the almost empty glass with her, and proceeds to serve Beck a beer. When the camera switches angle and zooms in to Beck, slowly cutting Mariana out of view, she's seen taking another sip of orange drink, but now the glass is about half full.
Trivia: California Govenor and former action star Arnold Schwarzenegger makes a special guest appearance in this movie. When Beck first arrives at the night club, Arnold walks right by him and tells him to "have fun." Arnold had just become Govenor and knew he would not be acting for awhile so this was his way of passing the torch to someone he felt would take his place as the future of action movies.
Trivia: The film's original title was "Helldorado." It was then changed to "Welcome to the Jungle," before being changed again to "The Rundown." It's still "Welcome to the Jungle" in Europe, possibly because "The Rundown" sounds like it refers to a car accident, whereas in the US it would be more readily associated with a bounty hunter.