According to the wookipedia, in Jawaese, the native language of the Jawa species from Tatooine, the number 7 simply doesn't exists. Counting in Jawaese: 1 Po 2 Ko 3 Kyo 4 Yo 5 Dyo 6 Lyo 7 Does not ...
In the movie, LesterCorp occupies floor 7 and 1/2 of the Martin Flemmer building. According to IMDB, Craig discovers this at the 7 and 1/2 minute mark of the movie. This could be a coincidence, but ...
In the series A Song of Ice and Fire, dragons always occur in groups of three - The three conquering dragons, the three eggs etc.
I remember as a child reading a story where the narrator was a little boy and how he was scared only twice a day – when the clock read 3:33. The 3's would be powerful enough (there were three of them ...