To stop people from annoyingly opening their Grolsch-bottle in the middle of the film, we encourage them to do it beforehand. By introducing the 'plop-moment'. A little organised challenge before the film. A countdown-clock appears, and just like in the western shootouts, the person that uncorks his Grolsch the fastest after the countdown reached zero, wins free tickets. By now all Grolsch-bottles are uncorked, and we can all enjoy the movie.