UPDATE-I've just been informed in the comments that the video here, even though to the best of my recollection it was posted as a scene from the upcoming Thor movie, is actually from some other movie with Jaimie Alexander. Sorry for the confusion. Personally, I thought it was strange that the Goddess Sif might be portrayed as so adversely affected by a shot of cheap human whiskey. You have to be careful with some of these fan videos.
For what its worth, here's a scene from the upcoming Thor movie. This isn't the official trailer, and I'm not sure it hasn't been left on the cutting room floor, but in it, the goddess Sif has come to earth in search of Thor and has to fight off the advances of an unwelcome but insistent admirer. The role of Sif is played by Jaimie Alexander.
Its always good when films include voluptuous bits of eye candy like this. Natalie Portman is also on board in the role of Jane Foster, who in the original comic was for a while Thor's main squeeze in the mortal realm, before he was reunited with Sif.
Here's the full cast of Thor, which stars Chris Hemsworth as the God of Thunder, and also includes Anthony Hopkins as Odin, and Tom Hiddleston as the evil Loki, God of Mischief.
