Czech cinema chain CineStar is celebrating its 25th anniversary with a promotional campaign for its customers. The celebration includes a large interactive cinema challenge featuring over 100 prizes. As part of the festivities, iDNES Premium subscribers are eligible to win free movie tickets to any film. Five randomly selected winners will receive two tickets each, granting them immediate access to begin searching for secret codes related to the challenge. The campaign aims to engage audiences and reward CineStar’s loyal customers during this milestone anniversary. Further details regarding the “Great Cinema Challenge” and ticket giveaways can be found through CineStar and iDNES Premium platforms.