Have you ever seen Her was a Quiet Man? I think it would fit with your theme.

Recently I watched that, Magnolia, Happiness, and American Beauty all in the same week and it was amazing/left me in a weird headspace

I didn’t actually meet him, but I made Bill Hader smile!

I was walking being him in a parking lot/alley in Venice and when I realized it was him I got super excited, then my friend whispered loudly “keep your cool, don’t make a scene” and then when he turned the corner we could see the smile on his face. It was very exciting

I’ve also walked behind Fred Armisen and Carrie Beownstein when I walked past a place where they were filming Portlandia

If you count the dudes from Last Podcast on the Left, though, I’ve met Henry Zebrowski so often that he recognized me on the street when I ran into him coming out of a bar. And he was in a Scorsese movie