Sam Yanes, the longtime corporate-communications chief at Polaroid, reminded me yesterday that Christopher Plummer—who on Sunday finally got his Oscar, becoming the oldest actor ever to win one—did Polaroid commercials. Here he is, in 1980, teasing the Sonar SX-70:

This polished 30-second spot is somewhat similar to the introductory SX-70 ad that Laurence Olivier […]