Would you reccomedend watching Citizen Kane high?

Go for it. I never seen it, but it seems interesting enough. We don't know what you like, so its hard to say.

 

Rosebud would be a killer strain... (Rosebud was Kane's final word before passing) 

 

Sounds like you just ruined the ending for him xD

 

 
Naw the whole movie is pretty much about a journalist trying to figure out why he uttered the word "Rosebud" before he died. 
 

Spoiler

it was his sled

 

Yeah, that would be an interesting film to watch on a big screen in a dark room while high.

 

I know there are reasons for Citizen Kane being one of the most respected films of all time, but most of them have to do with the context of the times.  
 
These days it's mainly just good for proving us with this gif....
 

 
 
Back then it was the shit I guess, but these days I consider it to just be a pretty boring movie.  I wouldn't smoke and watch it, I would consider it a waste of weed.  But you never know, maybe you'll enjoy it.  Worst thing that can happen is you'll fall asleep or just turn it off 15 minutes in and head to Taco Bell.

 

 
It's literally the very first scene haha
 
I bought it on DVD when I was in high school, watched it once and was bored by it
 
I might appreciate it more now, maybe I'll have to dig it out