Many months after the film had wrapped principal photography, it was decided that additional scenes were needed. The scenes with William Zabka were filmed just a few months before the film was released.
John Cusack stated that he made his decision to join the cast of this film almost entirely based off of the title.
Craig Robinson came up with the Michael Jackson joke used on the trailer, as well as the "It must be some kind of hot tub time machine" line that he deadpans directly into the camera.
Hot Tub Time Machine 2010
26 Mar 2010 ● English ● 1 hr 41 mins
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