Viewers find 'Challenger' a light-hearted, comedic take on the underdog sports story, with Alban Ivanov's portrayal of Luka, a down-on-his-luck boxer, receiving mixed reactions. While the film is praised for its humor and engaging secondary characters, it's noted for not being particularly deep or innovative. It's seen as a fun, if unremarkable, way to pass the time, with some moments of genuine laughter and a surprising finale.

👍 Engaging humor and surprising finale

👎 Lacks depth and innovation