Revealing mistake: After Casi runs the guy through the chest with the samurai sword, one can see that the two ends of the prop are not aligned, appearing bent.
Factual error: Lea went into the (locked) Navigator in the tow pound (where she works) to get a sample of the stashed heroin. Craig, with Lea's help, was able to get to the Navigator before Ballena (who "won" the auction) and drive away from the tow pound. However, they would not have keys because towed impounded vehicles do not have keys (unless the keys were left in the vehicle, which would be unlikely in this case because $15 million worth of heroin was stashed inside). (00:21:02 - 01:07:48)
Trivia: "Singularities" are infinitely dense points. When something is compressed to the point of having a volume of ZERO, its density is thought of as being infinite - in other words, a "singularity." A typical example is the inside (center) of a black hole. A huge star - that once had a large mass - was reduced to nothing, but that "nothing" has a density that is infinite. It is at a point of "no return" (an event horizon), so is not visible. BUT "naked singularities" could exist - and be visible.