What are names of other movies involving hooking up dates/making out at weddings?

I don't see a lot of movies but "Wedding Crashers" and "Four Weddings and a Funeral" both involved, to some degree, the idea that the group of strangers gathered for a wedding were influenced by the romance and sex of the coupling of the bride and groom to make hooking up easier.

For a story, I would like at least a couple of more that I can look up/rent to pick the best examples to mention in the context of the story.