Christian Bale is being eyed for a role in Michael Mann ‘s “ Heat 2 ,” the long-awaited sequel to the filmmaker’s 1995 crime drama starring Al Pacino and Robert De Niro, according to a source with knowledge of the production. Bale previously starred in Mann’s “Public Enemies,” and, if deals close, the reunion could see the Oscar winner starring alongside Leonardo DiCaprio, who has also been eyed for a leading role. Amazon MGM Studios and United Artists are expected to start production on the