Factual error: The crater of Mount Vesuvius has been fully blocked with rocks and soil since its last explosion few decades ago. There are no openings in it and no geysers shooting out.
Continuity mistake: In half a second, Leonard's hair swaps from messy to brushed to the right when Trevor arrives at the lab, despite him having both hands busy.
Continuity mistake: When the movie begins, Trevor enters the lab and his pal is holding the frozen object with his left hand. Half a second later he holds it with the opposite hand.
Chosen answer: Yep. The DVD comes in 3-D and 2-D versions. The 3-D versions come with (if I remember correctly) four pairs of 3-D glasses.
Cubs Fan ★