SKWERL is a short film by Brian Fairbairn and Karl Eccleston. The film attempts to show the English language through the ears of non-English speakers. Throughout the film you may hear certain words and phrases that you know, but the majority of the dialogue is incomprehensible.
You can check the transcript of the film in their website. It is mostly made up of real English words, but in a nonsensical order that is riddled with spelling and pronunciation errors. For anyone who has attempted to learn a foreign language, it's an incredibly realistic illustration of the frustration felt by several language learners.