Continuity mistake: In the scene where the helicopter is outside the castle, the entry team dons their diving gear to enter the water. They put on gas masks with one viewing panel. When the shot changes to a water view the entry team is wearing scuba masks, which have their viewing panel divided in half by a black line. When the team emerges from the water within the castle in the next shot they are back to wearing masks with one window. (01:16:40)
Continuity mistake: The pendant worn by Lucian in the first film triples in size whenever it is shown in Evolution.
Continuity mistake: After Marcus kills Kraven, we cut back to Selene and Michael. As he talks about her saving his life and that how everything has changed, part of Selene's fringe switches from hanging in front of her face to tucked to the side between shots. In the closeup shots it hangs in front of her face and in the wide shots it is tucked to the side.
Continuity mistake: The glass that Tanis is holding which Selene shoots with a crossbow smashes in his hand twice between shots.
Continuity mistake: After the fight on the barge between Michael and Marcus, Selene tries to revive the impaled and seemingly dead Michael. At one point she rips his shirt open to pour her own blood into his wound, then the shot changes to her face, then changes again, slightly further out. It is in this shot, you can see Michael's shirt is still intact.
Continuity mistake: When Michael is being shot by the police, Selene can hear the shots very clearly, despite being down in the basement off the safe house. She goes out and goes towards the shots. Although she's much closer to the action, and outside the building now, the shots seem a lot further away.
Continuity mistake: In the scene where Selene saves Michael from the cops, the first and third cop that she knocks out/kills is in fact the same actor used twice.
Continuity mistake: In the scene where Michael was served food, the knife and fork are on his right side but on the next shot the fork suddenly jumps to his left hand.
Continuity mistake: At the beginning it says it's 1200AD and all 3 elders are awake, but in the first film viktor tells Selene that they have been jumping through time, one awake, two asleep for over 1000 years.
Answer: This could be a confusion over characters. If I remember rightly, the film opens with a scene set somewhere around 1200AD, showing the three vampire elders, Markus, Viktor and Amelia, leading a war party. Possibly your friend has mistaken Amelia, played by Hungarian actress Zita Görög, for Selene, who doesn't appear in the film until after this lengthy flashback sequence has finished.
Tailkinker ★