"MIKE"? TRY "MR. WALLACE." WE WORK IN THE SAME CORPORATION; DOESN'T MEAN WE WORK IN THE SAME PROFESSION Christopher Plummer talks with the AV Club about his roles, including The Sound of Music: "[It's] become a great film. It’s just not my cup of tea. It was very difficult—very difficult—to play. To get rid of any hint of a sense of humor was hard stuff! We were walking on eggshells. But I do hope there was a twinkle sometimes."