The phrase "picture nod" means someone agreeing or showing approval to something without actually saying anything, just by nodding their head.
Sentences with «picture nod»
Well... I didn't see up getting a best picture nod as well. (filmjunk.com)
Unless the film enjoys a massive surge on the whole, as in reaching Best Picture nod potential, I'd say this is too little, too late. (incontention.com)
A Black Panther Best Picture nod could very well be possible. (slashfilm.com)