Hot Tub Time Machine (2010) (UNRATED)

Genres: Comedy | Sci-Fi
Starring: John Cusack, Rob Corddry, Craig Robinson, Clark Duke, Kellee Stewart, Lizzy Caplan, and Collette Wolfe.

PLOT
Four guy friends, all of them bored with their adult lives, travel back to their respective 80s heydays thanks to a time-bending hot tub.

http://www.imdb.com/title/tt1231587/
http://en.wikipedia.org/wiki/Hot_Tub_Time_Machine