No this isn't my favorite movie but not much comes to mind with the letter X. I will say that I have enjoyed all the X-Men movies that have been made and think some of the 'mutations' would be pretty awesome to have.
I mean who wouldn't want some type of telepathy? Granted I really wouldn't be interested in everyone's thoughts but knowing the thoughts of a few select people would be nice. The healing power Wolverine has would be amazing especially for kids, the elderly and everyone in between!
I particularly like teleporting guy, being able travel miles in just seconds would be so useful and time saving. What mutation would you want to have if you had a choice?