Matrix Reloaded, The - Fun Blood Flow
During the chase scene on the freeway, watch Trinity's arm. Either she's got a bloodflow problem, or they messed up with applying her makeup. (keep in mind that in a high paced chase she'd have no time to wipe off the blood)
If you watch her arm, it goes from a cut, to a REALLY BLOODY arm, to a little trickle, and stuff in between.
The Matrix Reloaded