Murder Mystery (2019)

Continuity mistake: After Sandler shaves in the cabin he gets back on the deck unshaved. When they appear at the dinner he is shaved.

Continuity mistake: After the first murder, the position of the fountain pen on the clipboard with the will keeps changing between shots (sometimes it's entirely on top of it, some other times part of it is off). (00:32:00)

Sammo ★

Other mistake: Nick Spitz shows the flight attendant his shield to gain access to the first class cabin. The shield is an NYPD patrolman shield. However, Nick is later identified by another character as an NYPD sergeant. (01:24:10)

Nick Spitz: You're an actress, right?
Grace Ballard: All women are actresses, dear. I'm just clever enough to get paid for it.

Audrey Spitz: Okay. What's that?
Charles Cavendish: That is the Quince dagger. Chinese steel, jewels from across the Orient. A gift to the family from Marco Polo. Or so the legend says.
Audrey Spitz: God. Nick's grandmother gave us a toaster from Sears. Or so the legend says.