That said, make sure you stay after the credits
Honestly, who doesn't?
On another topic, I was thinking about something that perhaps nobody but me finds interesting, but I'll share it anyway. Just one the subject of Marvel movie marathons, with so many out now, it's virtually impossible to do any kind of meaningful marathon, even spread over several weeks. But I was thinking about doing it a little differently. What about a marathon of the key films that cover certain character arcs? For instance, what got me thinking about it was doing a marathon of Tony Stark's development and character arc, which would be:
Iron Man
Iron Man 2
Avengers
Iron Man 3
Age of Ultron
Civil War
Infinity War
[Avengers 4]
I guess if you really wanted to flesh it out, you could also add in Winter Soldier for the back story on Bucky being evil and add Spiderman for Tony developing into Peter's surrogate father figure. But I don't view those as "essential" to the arc. And, yes, I know many don't care for IM3. But in terms of Tony's character development, it is absolutely crucial, so I would include it (aside from the fact that I really like it).
You could do the same for others. For instance, Cap: The First Avenger>Avengers>Winter Soldier>Age of Ultron>Civil War>Infinity War. Or Thor: Thor>Avengers>Thor 2>[optional: Guardians, for infinity stone backstory and to flesh out his later interaction with the guardians]>Age of Ultron>Ragnarok>Infinity War. Hulk: Hulk>Avengers>Age of Ultron>Ragnarok>Infinity War.
Aside from Tony's, I actually think the Hulk arc would be the most fun.