Guardians Of The Galaxy - 2014 Movie Prequel

I realized while watching "Guardians of the Galaxy (2014)" movie that end-credits scenes of "Avengers (2012)" and "Thor - The Dark World (2013)" serve as prequel to this movie by introducing to us - Thanos and The Collector.

I am including those credit scenes here (I also added English subtitles). Please see them before watching "Guardians of the Galaxy (2014)". It will make the movie much more interesting :-)