Okay, ladies (and gents. of which there are like, two). I need suggestions. As part of orientation, we have these nifty Proseminar lecture thingies, and mine is on Special Effects. I need input on which special effects in movies you found especially impressive, memorable, or striking. For example, anything and everything relating to Gollum, the opening scene of X2 (particularly the triple-bamf. gravy on a stick.), bullet ripples (that sounds almost like an ice cream flavor) in The Matrix, and hobbit proportions.

So what do you guys think? What special effects make you go "woah"? Or better yet, make you not go "woah" because they're so subtle?