I watched GF last night and I think I noticed two things.

When Tom is telling Sonny to make the deal if Vito dies, I think I can hear Clemenza talking to someone, probably Tessio. Has anyone heard that?

Also, when Michael runs up the hospital steps, you can see the whole hallway of the 2nd floor at the end of which Michael is facing a wall with a small desk up against that wall. Vito's room (#2) is to the right in an alcove of sorts. However, when Michael and the nurse maneuver Vito's bed to another room, none of the above is in sight and now the steps are right near Vito's room.