I collected comics as a kid and teenager too.
ZN, I feel your pain bro.
Like Iowa, my favorite MCU movie is Winter Soldier, followed by GOTG. I would put this movie somewhere in the top 5-10. Spiderman's early comics were similar to how he was depicted in his movie (socially awkward, learning to use his powers, etc.) I would imagine Infinity War will be a huge stepping stone maturity wise for this character. I thought Keaton did a great job and overall just an entertaining movie.
I'm stoked for Thor Ragnarok!
