Thor Post Credit Scene SPOILER

The May 6th comic book flick Thor has screened for British Australian and some American critics--who have mostly good to great things to say about star Chris Hemsworth

Given that--word has leaked out about the post-credits scene in the film which ties-in directly to next Summer's "The Avengers"

READ AT YOUR OWN RISK--YOU HAVE BEEN WARNED!!

Here's a description via Movie Stinger:

"In the scene Nick Fury (Samuel L. Jackson) travels to New Mexico to meet with Dr. Selvig (Stellan Skarsgard). He is there to discuss recent discoveries Selvig has made regarding alternate universes. He is also there to get Selvig's advice about a large metal case, which contains the Tesseract Cosmic Cube. When Selvig asks what it is, Fury responds that it is a source of immense power. The camera than pans back to Selvig, and a reflection reveals that Selvig is now being possessed by Loki (Tom Hiddleston), who says: "That's very interesting".