Why would you want such a culture? People love movies and probably can learn how untrue or true they are by just googling stuff. I certainly do.
Of course movies are for the most part relatively harmless entertainment, but they too do shape expectations. I've heard of Juries rejecting reasonable evidence because crime shows have taught them to expect iron clad proof.
googling doesn't disabuse you of ingrained lies.
Movies are just fairy tales and people enjoy fairy tales for good reason. Stories are actually a very efficient way to sharing information. I could why in detail but I’d just say it’s the way we process information is more emotional than logical. A fairy tale is essentially a hyper compressed emotional truth (when it is a GOOD fairy tale).