No, you cannot unless you use an action replay.
No, you cannot catch a mew in Pokemon Platinum without cheating.
If You Meant To Catch To Mew,No.
you can catch it in mt.cornet no cheat
You can't unless you use an action replay code to catch or download an event with Mew.
No, you to migrate it from Pokemon firered/leaf green.
it is impossible but you can catch mew at pal park
You can't catch mew,only is you have action replay,or hack. If you have action replay you need a code to find it.
You can't catch Mew in Platinum without the help of an Action Replay or going to Nintendo Sponsored Event, Sorry.
You Have to trade from Pokemon Diamond, Pearl, or Platinum.
you can't catch mew in Pokemon platinum you can only get it by cheats, mystery gift, migrate from a Game Boy Advance Pokemon game like fire red, leaf green sapphire, ruby, or emerald version.
you can't catch mew and you can't trade it from pearl platinum diomand heart gold or soul silver so no you can't
i don't really think there's a way to catch mew in Pokemon platinum w/o cheating, but u can migrate it from the gameboy advance games if u have them.