When it came to scenes where Michael pauses his surroundings, the effects crew originally planned for everything to be frozen, including the environment; however, they found out this "bothered" the eye, thus switching the plan to only the characters being frozen while the environment (such as leaves on the trees being blown by wind) keeps in motion. The primary challenge for the freeze shots was sharpening the frozen characters as much as possible; there were some cases where the characters would freeze in a very active moment, causing the effects team to have to work with the motion blur that resulted from it. For instances where characters were frozen in a moment where they were still, they were filmed staying in that position for seconds so that, during post-production, the average of multiple frames would create a result absent of film grain.