Continuity mistake: In the scene at the end where Terry and Lara are talking in the Cradle of Life, Terry smacks her when she's says she won't let him leave with the box. After she stands back up, you can see that there's a cut on her lip (right after she spits). Then the camera angle cuts to Terry quickly and then back to Lara, only, the cut on her lip is now gone and it doesn't reappear. (01:42:55)
Suggested correction: It's not a cut. The wound Terry's blow caused is supposed to be inside Lara's mouth, hence the spitting out blood. Some of that blood was left on her lip after she spit it out. Apparently, she removed it while the camera was on Terry. Note how there's blood covering her front teeth (probably from the blood capsule that was used), suggesting Lara bit the inside of her lip (or rather had the lip smacked into the teeth hard enough to cut the skin).