Hot Tub Time Machine is a 2010 American science-fiction comedy film directed by Steve Pink and starring John Cusack, Rob Corddry, Craig Robinson, Clark Duke, Crispin Glover, Lizzy Caplan, and Chevy Chase. The film was released on March 26, 2010. It follows four men who travel back in time to 1986 via a hot tub, and must find a way to return to their own time. A sequel, Hot Tub Time Machine 2, was released on February 20, 2015.

John Paul Cusack is an American actor. Cusack began acting in films during the 1980s, starring in coming-of-age dramedies such as Sixteen Candles (1984), Better Off Dead (1985), The Sure Thing (1985), Stand by Me (1986), and Say Anything... (1989). He then started appearing in independent films such as Eight Men Out (1988), The Grifters (1990), True Colors (1991), and Money for Nothing (1993). Cusack began appearing as a leading man in such films as Bullets Over Broadway (1994), Con Air (1997), Grosse Pointe Blank (1997), The Thin Red Line (1998), Being John Malkovich (1999), High Fidelity (2000), America's Sweethearts (2001), Max (2002), and Runaway Jury (2003). He also starred in films such as The Ice Harvest (2005), The Contract (2006), 1408 (2007), War, Inc. (2008), Hot Tub Time Machine (2010), The Raven (2012), The Frozen Ground (2013), and Dragon Blade (2015).