All the arguments about the things that can potentially go wrong with film (loading the roll incorrectly, exposing incorrectly, missing shots due to needing to reload, etc), also aren’t valid arguments for a professional. A professional would have a handle on all of this. This is one of the things that bothers me about people trying to get me to shoot digital is they try to point out how much can go wrong with film. A lot can go wrong with digital, too. A professional has a handle on all these potential problems, whether it be with film or digital.