yes, of course. Noticed it in the theater, noticed it that night. My son who has ONLY seen the Tony promo noticed it, and laughed. (And I'm pretty sure he's never seen Titanic)
As to it being anachronistic, I think its simply a wink to the contemporary audience.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.