a movie stock, such as Unknown, adjusts on Sun (or Mon on a three day weekend) using estimates for the weekend
a call price cashed out on Mon (or Tues on a three day weekend) based on actual revenue
the call price halts on Friday AM, while the movie stock does not halt until 6pm HSX time on Saturday, so between Friday AM and Sat PM traders can move the price of the movie stock, while the call price is frozen