The drug given to Henry Taylor by Gedge is supposedly a paralytic that works on all of the extremities AND the vocal folds. This type of specificity is highly unlikely, as the vocal folds are innervated by the 10th cranial (vagus) nerve. None of the extremities is controlled by this nerve.
When David Emerson closes the back doors of the van holding the Matobos, although he performs a locking motion with the handle, the door swings open slightly right before the cut.
Vossler tells Samantha that she is imminent danger and needs to put her in protective custody right away but contradicts himself when he tells her they still have time to stop by her apartment to pick up any essential belongings.