Check out this really cool alternate ending to Thor, which is one of the many special features being released with the upcoming Marvel Phase One box set, which is set to be released on April 2nd, 2013. It will include a ton of extras that includes footage from existing Marvel films, and some sneak peeks at some of the Phase Two films!
The scene basically shows Jane Foster (Natalie Portman), Darcy (Kat Dennings) and Dr. Erik Selvig (Stellan Skarsgard) shooting a beacon into the sky to help guide Thor (Chris Hemsworth) back to Earth.
Not sure why it ended up on the cutting room floor, it's actually a nice little scene. Check it out!