Watch This Avengers: Age of Ultron Blooper Reel

If you're curious how they were able to actually make Avengers: Age of Ultron, look no further than our interview with the film's production designer, Charles Wood, right here. If you're wondering what prominent authors and scientists think about the possibility of an sentient artificial intelligence becoming Ultron-like (evil, that is), you can read this piece to find out. Or, if you want to watch Chris Evans forget possibly the easiest line in the film, watch Robert Downey Jr. "get an omelette on his face…again," or see Mark Ruffalo trip over some of that sciencey-talk regarding Ultron, we've got your blooper reel below. Summer's over—time to get serious.

Featured image: Marvel's Avengers: Age Of Ultron..L to R: Bruce Banner (Mark Ruffalo), Natasha Romanoff (Scarlett Johansson), Tony Stark (Robert Downey Jr.), Thor (Chris Hemsworth) and Steve Rogers (Chris Evans). Photo: Jay Maidment. Courtesy Marvel 2015.