Good quiz, a few things... young man leaves and forms a trio: this could be a lot of movies. I was thinking The Dreamers. I'm not sure if that movie is as fantastic as I think it is or not, I've never been able to pay attention to any of the words when I was watching it. Please accept "The Lion, The Witch, and the Wardrobe" for the movie by that name. The Chronicles of Narnia is technically the name of the series. and finally, the tiny army that fights the gigantic army in 300 LOSES. They don't win.
Interesting quiz! I agree with kalbahamut and I have a couple things to add. "A rat is flushed down to the toilet..." - I was thinking about "Ratatouille" the whole time - the rat there may be not exactly flushed, but the second part of the description is for both movies. About the guy, who forms a trio - they're actually 4. "A low-life gets into trouble after being confused with someone else"- this can be also a description of "The Prince and the Pauper". But it's a cool quiz tho! I'm sure you put a lot of effort in it. :)
i agree with both comments above. the clue for 300 is wrong because they actually lose. And "a tiny army defeats a huge army" could be many movies - I was thinking Lord of the Rings. The clue for three musketeers is also wrong because the guy joins an existing trio, thereby forming a group of 4. These two clues are a bit ambiguous and could use some more helpful description. Other than that, great quiz!