Directed by Ron Howard , this sequel to The Da Vinci Code follows Harvard symbologist Robert Langdon as he races through Rome to stop a terrorist attack against the Vatican. : Ron Howard Music : Hans Zimmer Starring : Tom Hanks as Robert Langdon Ewan McGregor as Camerlengo Patrick McKenna Ayelet Zurer as Dr. Vittoria Vetra Stellan Skarsgård as Commander Richter