They Look So Small

So, I catch a part of a movie the other day.  Just out of boredom.  The Mummy.  I noticed a pistol.  It looked like a 1911, but it was too small, seemingly.  Could it be a Colt Pocket Hammerless?  And why?  What an odd model pistol to put in the hands or a Brit character in the Egyptian desert.  The hammerless, I mean.  A 1911 makes sense.  More than a pocket pistol in an action movie.

I checked resources, and yup, it was a 1911.

This is not the first time.  Why, on the big screen, does a full size pistol look three quarter size to me?  Odd.  It's not like Hollywood is full of big actors.  It's not like I haven't handled a 1911.