Gotta say I'm just the slightest bit disappointed. One of the scariest things in Ridley Scott's Alien were the shadows. In this clip, it's dark, yeah, but you can still see everything. Even Paul Anderson knew it's usually best to show the monsters sparingly - even in a sequel where the audience knows exactly what they're gonna see. ...But, I guess when they look this good, it's okay.
Also, seriously, if you'd never seen an Alien before - and one was coming right at you - would you stop, go back into the lion's den, just to get your keys? lol Still, Wolf sure looks great. Overall, I'd say there's potential. 3.5 out of 5.