As a birthday present to one of his nephews, Tim Allen, requests that all movies be released on a date signifigant to a member of his nephews family. For example His Nephews birthday is november 11th, the santa Clause was relased on that date in all theatres,...
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In the scene where Scott Calvin is trying to knock the toy Santa out of the sleigh; the toy Santa says to Scott: "You're a sad, strange little man." That is a reference to Buzz Lightyear from Toy Story (which is also played by Tim Allen).