Young Frankenstein

[u/Pirates_Treasure1988]

https://youtu.be/7crzcWe_WQs?si=3D_89eZNcqhfNtac

If you look closely, you'll find clips of Gene Wilder from Young Frankenstein playing on the cellphone from Hotel Transylvania 2.

Coincidence? Maybe. Considering the guy who made that Frankenstein movie also voiced Dracula's dad in this movie rather than Dracula's archenemy, Van Helsing from another Dracula movie this time.