Hooked on a Feeling About the Guardians of the Galaxy Preview?

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The new Guardians of the Galaxy preview from Marvel Studios (August 1, 2014) shows a good peek of the characters Rocket Raccoon, Groot, Gamora, Drax, and Peter Quill / Star Lord. I wanted more story details, but police seem to focus on Quill after he grabs a special orb near the beginning of the preview. What are your impressions?