eyes in my head, seeing the cast at SDCC, press junkets etc
it is only my personal opinion but the ease within the relationship shared by UNCLE, Avengers cast etc doesn't seem to be there in what I've seen of FF, TG etc.
I'm not claiming to know them personally
https://www.youtube.com/watch?v=n8jERmEVpCY
I think you look at movies like UNCLE, GOTG, The Avengers ( not the Fiennes/Thurman one) and the cast have good chemistry. You look at FF or TG and, IMHO, the chemistry isn't there
https://www.youtube.com/watch?list=PLAP8b9R9mMk_eIjUfrhU8VHUMN0pLMCkV&t=58&v=7ZdcpuPFZdM
here is the sdcc panel if anyone wants to see it. It certainly did wonders for the movie's profile. Also the cast interviewed by lana kane