In the same year another classical horror film, James Whale's Frankenstein, starring Boris Karloff, was released. Karloff, alongside Dracula star Bela Lugosi attained iconic status in American popular culture and over the following three decades and a cycle of horror films ensued from Universal Studios. Examples of these are The Mummy in 1932; Dr. Jekyll and Mr. Hyde of the same year; and several Frankenstein spin-offs, including The Bride of Frankenstein in 1935. Horror films have naturally evolved since they first screened in the 20th century. Part of this evolution coincides with historical events that have captured the imagination of film directors. The movies tend to address universal fears and cultural ones, reflecting the times in which they are made. For example in the 1950s films featured mutated insects and radioactive monsters, mirroring the fear of nuclear attack from Russia which existed in America at the time.