We all know that the Rotten Tomatoes rating system isn't entirely reliable - as an aggregator website which decides whether or not a film is fresh or rotten based on general approval or otherwise by the critics, a film's rating isn't always a guarantee of its actual quality, and just as some great films can find themselves with a lower rating than they deserve, so too can average or even terrible movies come out as freshly rated. With that said, if you take a look at those films which have been certified 100% fresh it's clear that, for the most part, these are truly exceptional films. There are plenty of cinematic masterpieces represented, from Citizen Kane and The Godfather through to the arthouse cinema greats including Akira Kurosawa's The Seven Samurai and Francois Truffaut's The 400 Blows. Indeed, the vast majority of the titles listed are instantly recognisable as the classic movies they are. But there are a handful of titles which have been granted 100% which are lesser known - movies which may have slipped under your radar and haven't had the exposure they truly deserve. In the spirit of rectifying this to some degree, the following list covers 10 great movies with 100% Rotten Tomatoes ratings you've probably missed.