Given that this is a Star Wars game, it seems like making some sort of refence to the actual Star Wars movies would perfectly fitting, and very iconic. I can always call it a coincidence. I want to come up with more quotes, but not every one would make sense in an Edge of the Empire type adventure. Here are a few that might. What other ones do you think could work well?

"Never tell me the odds!" This is versatile.

"No discintigrations." Have an employer say this on the PCs' next mission, after they discintigrate something.

"It's a trap!" Should be obvious.

"Wipe them out. All of them." When an NPC wants the PCs to commit mass murder.

"The Techno Union will..." (strange sounds as dials turn and settings are adjusted) When the techno union is offering to do something for the PCs.

Almost every game, someone usually throws a "I've got a bad feeling about this" at some point.

A nice, loud, dramatic "NO" per adventure is just as required as the line above.

Good, our first catch of the day.

We usually don't make any references in seriousness, though the odd noooo and bad feeling is a common bit of banter.

The more preferred phrase? "We are gonna need a bigger fish."

How about IM HIIIT (expolosion). well not from the pc's i hope.

"(Evil Person)! I knew you were behind it! I witnessed your foul stench as I was (transferred by any means to current location)."

None are planned in our games. Still, they do tend to crop up. The casual 'Oh my goodness' always ends up being thrown if a protocol droid comes into play.

We don't plan any consciously, but they tend to come out naturally over the course of play. The main classic is "I've got a bad feeling about this", which we probably over-use.

From the very first trailer for The Force Awakens, we had a lot of fun with Captain Phasma, because the look of the character is pretty much exactly how one of my players described their character (right down to the cape and everything).

It's not Star Wars, but the session after Avengers: Age of Ultron came out we realised we inadvertently recreated the opening scene, right down to specific PCs being different Avengers. That was a fun day.

If I'm running a game, and my PCs don't say, "I've got a bad feeling about this" in the first two adventures, then I'm doing something wrong.

Another thing aside from quotes is of course referencing the events in the movies.

I remember playing X-Wing Alliance for the very first time and flying in the Sabra in the first mission and Emkay talking about Luke Skywalker

Aeron (your sister in the game flying the YT-1300 Selu in that mission): "Luke who?"

Emkay: "You know from the Holovid that Olin showed to us. The guy who blew up the Death Star over Yavin!"

NOTE: I played the german version and I might have misquoted, because I retranslated sorta here.

This actually is a perfect example of how Luke could have become only a "legend" in TFA. The Holonet is nothing near our Internet. It may be so on a single planet, but across the whole galaxy? I don't think so.

So maybe have NPCs tell some wildly exaggerated tales about the Battle of Yavin to the PCs. Or any other battle. Most news come with new arrivals in spaceport and then it is word-to-mouth. The Holonet is an unreliable source for news since it is under censorship.

Have a NPC Spacer tell the PCs something like this:

"Well ya heard how the Rebellion was crushed on Yavin 4 after they blew up the Death Star? Well here's some news to you kid, they're still out there and kicking the emperor's ass! They evacuated quickly enough to save almost everything. Nothing can stop them, they're gonna free this galaxy, hear me out! You should join them! Me? I am too old. But you're young and spry. I hear they made camp on an old smuggler's hideout called Hoth or sumthin'. Maybe go there, see if they take yer as a recruit!"

This represents how some in the galaxy might have taken the new hope (hah!) given by the victory of the alliance at Yavin.

Sadly we game in French at my table so it's harder to slip easy references and quotes in common discussions. When we do though, it gets pretty highlighted by the language shift.

As a GM I do make in universe references to movie events, mostly from the PT, and sometimes from TCW and Rebels, since our game is before ANH. Since we play Star Wars because we love the movies first and foremost, I think it's only natural to make the players feel like they're part of this world (thus probably fullfilling forgotten childhood dreams!).

I flubbed it up in a recent mission, but I tried to say something along the lines of the Seventh Sister's "unexpected, but not unwanted" when confronted by Ahsoka.