Originally Posted by cherokeesam
It depends on whether or not the Infinity Gauntlet already exists in the MCU. Technically, it does, since it was already seen in Odin's Treasury in a deleted scene from the Thor movie, and was featured in the artbook for that movie. Some people don't want to believe that because they believe that deleted scenes are not "canon." It remains to be seen how Marvel Studios feels about deleted scenes.
Actually, it wasn't in a deleted scene--it was in the actual movie: