What part of the brain hold memory?

I'm a young actor and but haven't had much luck finding a role in any thing and I've come up with a great idea. I'm going to fake amnesia (memory loss) for about a day or so. Now this may sound a bit crazy and weird but I feel that if I'm able to pull this off and fool my friends and family I'll feel alot more confident and maybe it will help me find a role in something. How do you think I should do it?