That Dustin Hoffman is most likely a fake. The seller of it is known for making fake cards under a different name and the manufacturer (Razor) has never stated what movies the costumes came from.
Regarding Charles Manson, just personally, id buy it just to burn it. >_<
I know alot of companies are coming out with strange signatures (there was one card with JFK's signature and Lee Harvey Oswald's signature on the back, then i think another manufacturer came out with Hitler's signature…#@i mean, really???? Who actually wants those signatures???).