Pablo Casals appears with his back turned to the camera, playing his cello, in one portrait by this artist.
One early surrealist picture by this photographer depicts a large flask, in which three reflections of a nude woman with upraised arms can be seen, as though she were trapped inside the bottle. This photographer of The Elixer also shot a photo of a man enjoying his lunch while seated on an industrial paper roller while touring his country in the 1950s to photograph its industry. Pablo Casals appears with his back turned to the camera, playing his cello, in one portrait by this artist. A shadow bears down on the subject of another portrait by this photographer, whose slightly down-turned face and stern look are reportedly the result of this photographer removing a cigar from that subject's mouth a moment before the photo was taken. That photo, shot in 1941, depicts a man in a black three-piece suit, with his left arm akimbo and his right hand resting on the back of a chair. For 10 points, name this Canadian photographer of that oft-reproduced portrait of Winston Churchill. 
One early surrealist picture by this photographer depicts a large flask, in which three reflections of a nude woman with upraised arms can be seen, as though she were trapped inside the bottle.
Yousuf Karsh 