Young Frankenstein is Mel Brooks' horror parody starring Gene Wilder as a descendant of Dr. Victor Frankenstein. Among all the great jokes making fun of the genre there's one involving continuity.
I do everything I can to avoid watching trailers. I won't look them up on purpose and when a youtube video starts with a trailer I try to skip it as soon as possible. In cinemas I look at my phone and listen to music while the trailers are playing.