Never knew fredo was the one that did the blinds
Breh it took me years to connect that dot, and when I revealed it here and when I tell people in RL who I know have loved this movie for longer than I've been alive they're all
Fredo was the only one who could've done that shyt.
@Daisy Fitzroy does point out that the night-call leads us to believe Fredo truly didn't know it was going to be a hit, but that might've been him already in denial/trying to save his ass. The other theory could be that there was another traitor in the camp. Which WOULD make sense because SOMEBODY killed those two assassins, and I'm not convinced at all that Fredo could've/would've done that based on how he reacted when Vito got popped.
I say it's Fredo who opened them as he's the only one who could legit walk around the house and everybody would accept it. The movie also never tells us what Fredo did exactly to betray Mike. The OG script has these lines:
MICHAEL I want you to reach Fredo. I know he's scared, but have one of our people reach him. Assure him that there will be no reprisals. Tell him that I know Roth misled him.
HAGEN My information is that Fredo thought it was a kidnapping. Roth assured him nothing would happen to you.
Which means Fredo gave them access to Mike's whereabouts, which could definitely imply that he opened the drapes.
The reason we don't think about it is because Michael internalizes everything and the movie, which is GOAT, doesn't really bother telling us everything.
He's only open to Tom and even there we can see he's not giving him everything he's thinking about:
TOMIf we catch these guys do you think we'll be able to find out who's backing them?
MICHAELThat's not the catch -- unless I'm very wrong, they're dead already. They're killed by somebody close to us -- inside. Very, very scared they botched it.
TOMWhat about your people ROCCO and NERI? You don't think that they had something to do with this.
MICHAELYou see -- all our people are business men, their loyalty is based on that. Now, one thing that I learned from Pop was to try to think as people around you think. Now on that basis, anything's possible.
Everyone who makes it a point to externalize and tell Michael how they really feel gets GOT in some way.
Kay tells him what she did and how she feels and gets cut off
Fredo tells him, in the end, how he feels and gets offed (I truly don't think he was 100% set on killing him, but this conversation led him to believe Fredo was ALWAYS going to resent Mike and be prone to outside influence)
Hyman Roth tells him, in the end, how feels and gets offed
Tom Hagen keeps it real with Mike and gets fired
Connie keeps it real with Mike and gets cut off
Who does Mike keep close to him?
Al Neri who's only line in the movie, I think, is "it's difficult, not impossible" when they talk about killing Hyman.
That's how alone Mike is at the end. He's not just physically by himself because everybody is either scared shytless of him or he cast them out.
Nobody knows how he's thinking.
Cut to the flashback where he's the only one who doesn't go greet his dad at the door because Mike just externalized and told everybody how he feels and his older brother slapped him for it and Tom treated him like a tool ("we have plans for you Mikey").
The only one who congratulates him....Fredo
GOATshyt.