The late Robert Altman was an original soul and unique, provocative director long before he hit the big time with M*A*S*H in 1970. If you can find any of Altman's Alfred Hitchcock Presents episodes, check 'em out. While you only see glimpses of the mature Altman style, the episodes I have seen are quite wonderful. One co-stars an uncharacteristically subdued Jayne Mansfield with Tony Randall, whose creepy performance as a charming, successful TV star but very bad guy invites comparisons to Andy Griffith's inspired work in A FACE IN THE CROWD. This is a Tony Randall that, I promise, you have never seen anywhere else. Altman could get those kinds of performances.
For more, check out this Filmography from the New York Times.