A theme is the film's central, unifying concept. A theme evokes a universal human experience and can be stated in one word or short phrase (for example, love,  death,  or coming of age ).

Towards the disturbing Skinamarink ending, the words "572 Days" appear over a shot of an upside-down room filled with toys. The meaning of this phrase is purposely left vague. However, if the theory that Kevin is in a coma is true, then 572 days could represent the length of time he has been unconscious.