need opinons on 2 movies

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Hey all I recently watched 2 films, called snatch and lock, stock, and 2 smoking barrels, and i enjoyed them more than i thought i would. I have found out about 2 similar films, called reservoir dogs, and layer cake. I was wondering if anyone had seen these two films, and could tell me: Firstly, how much nudity etc is involved? As i tend to watch films with friends, and i dont want to see that sort of stuff and secondly Are they any good? THanks