Johnson began his theatrical career in "The Mummy Returns" (2001), "The Scorpion King" (2002), "The Rundown" (2003), and "Walking Tall" (2004). He played a supporting role in "Be Cool" (2005) and was the primary antagonist in "Doom" (2005). He also had roles in "Gridiron Gang" (2006), "" (2007), and "Southland Tales" (2006). He played a cocky famous American football player in "The Game Plan" (2007) and Agent 23 in "Get Smart" (2008). He presented the Academy Award for Best Visual Effects at the 80th Academy Awards.