Here are a couple quotes from typography purists:
"I think sometimes that being overly type-sensitive is like an allergy."
"Choosing an inappropriate typeface is one problem. Applying one inaccurately is another. Sadly for type nuts, movies often offend on both counts. Take 'Titanic,' in which the numbers on the dials of the ship’s pressure gauges use Helvetica, a font designed in 1957, some 45 years after the real 'Titanic' sank."
Read the NYT Design article here.