Where do we find Mew in Pokemon Diamond/Pearl/Platinum?

Question

I need to capture a Mew... Someone help me... Mew's just wonderful to be my Pokemon.
(I have a Cherrim but i'm just looking for Mew)

Answer 1

Mew can only be found by an event in D/P/PT.

Comments

Can i find a fossil of Mew in the Underground then make it into a Pokemon in the Oreburgh City museum instead?

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No you cant

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Fossil Mew. Hm...

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I saw a video in youtube about digging in the underground for Mew fossils, but the video is a lie xD