Some random thoughts here:

(SPOILER)
- I thought it was very good. Not sure about this whole best Marvel film business some have suggested though. I'm not even sure it's the best Captain America film.
- I'm Team Cap. Obviously. Tony Stark is a prat.
- Pretty good set-pieces all round, especially the big airport brawl
- Joss Whedon is probably annoyed that the Russos didn't have to worry about cramming in guff about those Infinity Stones like he had to.
- Good on the Russos for getting another Community cast member in a Marvel film briefly. How about Alison Brie for Infinity War?
- Tony Stark just said what we were all thinking about Marisa Tomei being far too attractive to be Aunt May
- I liked the appearances from Spiderman (the Empire Strikes Back line is great) and Black Panther. Maybe this Spiderman film won't be pointless after all?
- Mark Ruffalo, Chris Hemsworth and Gwyneth Paltrow should have all been billed as Sirs Not Appearing In This Film
- Rather disturbing to see the return of Weird Science-era Robert Downey Jr in one scene. Marvel need to stop with this whole 'let's make actors look much older/younger' business, it's too weird.
- Loki is still the only great Marvel film villain to date. I gave Ultron a half-pass though, and I'll give Zemo one too, as even though there's little to him as a character, his plan was at least more thoughtful than what we usually get.
- I spent a lot of the film thinking Daniel Bruhl was Wes Bentley. What the hell is wrong with me?
- I know it's a terribly blokey moment, but I laughed my head off at the grins Bucky and Falcon gave Cap after he kissed Sharon Carter.
- On the other hand, kissing Peggy's niece? A bit ewww.
- Martin Freeman is in this. Wait, what?
- One year to go until Guardians of the Galaxy 2! Not fussed either way about Doctor Strange at this point.