Submitted for your approval, a new term:
Professional Screenplay Filmer
noun - 1. a film director who photographs a motion picture screenplay and adds the minimum personal vision or style to the project required; 2. a reliable, predictable director whose films finish on budget and on schedule (which makes him attractive to studios); 3. a filmmaker who creates bland, mildly entertaining yet ultimately forgettable, non-threatening films. Examples include: Brett Ratner, Ron Howard, Chris Columbus.
Example films created by Professional Screenplay Filmers include Rush Hour, Red Dragon, The Family Man, X-Men III, Apollo 13, A Beautiful Mind, Edtv, Ransom, The DaVinci Code, Stepmom, Harry Potter and the Sorcerer's Stone, Nine Months.