2. What's Sabertooth's Story?
We first meet Sabertooth in the original X-Men film, as a member of Magneto's Brotherhood of Mutants. He's a man of very few words, and the last we see of him he's getting Cyclops'd off the Statue of Liberty. While it's unlikely that he's really dead, for some reason we don't see him again until X-Men: Origins as Wolverine's half-brother. Here he's a lot more menacing and a whole heck of a lot more verbal. Makes me wonder what happened to him between the two movies. Did he too have an unfortunate head injury? Is he even the same Sabertooth? My theory is that perhaps after Origins, Sabertooth went into the assassination business and was sent by someone to off Magneto. I think Magneto gave him such a beating that he ended up losing his memory, and then, rather than kill such a useful mutant, Magneto chose to utilize him as one of his henchmen. That's probably not what happened, but it doesn't look like we'll be getting an answer any time soon, so we can only speculate.