I can tell you what the second Guardians after credits scene is SPOILER!!!!!

Read at your own peril this is a huge and awesome spoiler



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We see The Collector sat drinking in his destroyed domain, as he sits there drinking, Cosmo the dog is licking his face, we hear a gruff voice say 'What do you let him lick you like that for', the camera cuts to Howard the mother frigging Duck!!! 'Gross' is his last word and he takes a sip of a drink he has and thats it, end of movie. This is honestly what happens!