As mentioned within Gunn's caption, a highlight of the photo is actually Chris and Ana's son Jack. Of course, the timing and targeted perspective of the photo should be taken into consideration. It is apparently clear that the photographer was aiming to get a good shot of Gunn and Faris side-by-side in addition to the other great group shots that were captured with the two celebrities along with the "man of the hour" Chris Pratt. In this specific shot, though, it is clear that the celebrity couple's son was focused on other things besides the photograph that was taken.