the number 4
is considered unlucky in Japan, China, Korea, and Vietnam because its sound is similar to that of the word "death"
the approximate number of weeks in a year
is a 2003 romantic sci-fi film with Tim Robbins, about a love story doomed by genetic incompatibility
" (Four) is one of the main characters in the sci-fi TV series "Dark Matter", played by Alex Mallari jr.