Edward Everett Horton repeats the role of Nick Potter, which he also played in the previous version of the film, Holiday (1930).
Upset at the negative publicity that star Katharine Hepburn was receiving in advance of the film, studio boss Harry Cohn proposed to take out an ad in Variety asking "What is wrong with Katharine Hepburn?" Hepburn cautioned Cohn against the idea, stating "Look out! They may tell you!"
Linda Seton was loosely based on Gertrude Sanford Legendre, a former débutante who left high society to become a big-game hunter and later worked in London for the OSS during WWII. Katherine Hepburn actually bears a striking resemblance to her.
Cary Grant performed his own tumbling stunts. Before becoming an actor, he was part of an acrobatic troupe in vaudeville.
The third of four movies pairing Cary Grant and Katharine Hepburn. The other three are Sylvia Scarlett (1935), Bringing Up Baby (1938), and The Philadelphia Story (1940). George Cukor directed all of the films except Bringing Up Baby, which was directed by Howard Hawks.