Reactions to being impersonated on Saturday Night Live have run the gamut. Find out what Martha Stewart, Miley Cyrus and more have said ahead of SNL 50: The Anniversary Special airing Feb. 16.

The electric chemistry that sizzles between two actors on screen can do more than enthrall an audience. It can ignite off-screen romances in real life. Cozying up on set, mastering lines together, and ...