Tom Cruise reportedly forced U.S. network Comedy Central to cancel the repeat of a "South Park" episode about Scientology by threatening to boycott publicity events for "Mission: Impossible III," according to media reports. The star is alleged to have pressured Hollywood executives at Paramount Pictures which are owned by Viacom -- as is Comedy Central. South Park episode "Trapped in the Closet" thrilled fans when it aired in November, by poking fun at both Cruise and his controversial beliefs system. But, despite being scheduled to rerun on Wednesday night, it was mysteriously pulled at the last minute. However, Cruise's spokesman denies the star threatened executives: "He never said any such thing about 'Mission Impossible III'." South Park creators Trey Parker and Matt Stone issued a statement to Daily Variety saying, "So, Scientology, you may have won this battle, but the million-year war for earth has just begun! "Tempo