Answer:
un festival internacional de cine
Step-by-step explanation:
The question saya Emily and her uncle are going to watch a lot of movies and know a lot of famous filmmakers. They´ve got tickets for:
A comedy movie
An international film festival
A short film making class
A discussion with a lot of famos directors
From the options the most logicall would be the second one because in international film festivals they´ve got lots of screenings of movies and lots of famous filmmakers attendig that you are able to meet and have a chat with them.