Plummer, Spencer win SAG supporting-actor prizes (AP)

Christopher Plummer arrives at the 18th Annual Screen Actors Guild Awards on Sunday Jan. 29, 2012 in Los Angeles. (AP Photo/Matt Sayles)AP – Christopher Plummer of the father-son tale “Beginners” and Octavia Spencer of the Deep South drama “The Help” won supporting-acting honors at Sunday’s Screen Actors Guild Awards, firming up their Academy Awards prospects next month.