Although admittedly the blooper lacks some crucial Tom Hiddleston giggle time (if you haven't yet, you need to watch his Hulk Smash blooper from Avengers Assemble, it's adorable), the rest of the cast included Robert Downey Jr, Chris Evans, Chris Hemsworth and Scarlett Johansson all look as though they are having the time of their effing lives.
We especially enjoy them all fumbling with Thor's hammer. That must have been a blast to film, right guys? Guys?
It that little taster wasn't good enough, some genius has also put together an unnecessary censorship video, showing Ultron is much more potty-mouthed than we could have imagined (it's brilliant!):
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