1 Monty: You! Dr Smith! Erwin! You’re all in this together!
2 Alice: Yes, bu...
2 Monty: It’s a conspiracy to resurrect Hitler!
3 Alice: It’s all a misunder...
3 Monty: How could you do such a thing?!
4 Alice: Let me explai...
4 Monty: No!
4 Prof. Jones: This is a very unconvincing romantic comedy.

How many romantic comedies could have ended 90 minutes earlier if only someone had let someone else explain that an apparently suspicious thing is a misunderstanding?

Pretty much all of them.