Gonna second Will Smith, and Tom Cruise. Can't think of a bad film they've done, although my opinion is skewed by the man-crush I have on them. No Scientology or irritating kids will change my opinion. :P

In terms of music, the Japanese band Straightener haven't released a bad song to date. Same with composer Shiru Sagisu, anyone who's heard the Casshern soundtrack will immediately idolise the guy.