Just how large will the Sentinels be in X-Men: First Class sequel X-Men: Days of Future Past? That’s a question some of you might have asked yourself, or maybe the internet.

We recently got some peeks at the machines—creations of Bolivar Trask (Peter Dinklage) to combat the growing mutant threat—on the viral Trask Industries website, but director Bryan Singer wants to show you exactly how big they are himself.

Singer has tweeted out a photo of himself standing next to a Sentinel that was built for the movie, and you can see the size comparison in the image below.

What do you think? Is the Sentinel big enough for you, or should it be bigger?

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