Harrison Ford Served as a "Covert Technical Adviser" on "Solo: A Star Wars Story"

Solo Harrison Ford
Harrison Ford, the original Han Solo, served as a "covert technical adviser" on Solo: A Star Wars Story," according to EW. And despite the actual perception that Ford just doesn't really care about "Star Wars" anymore, he wanted his character killed off in the 70's, he was actually quite courteous in his lunch with Solo: A Star Wars story star Alden Ehrenreich.
Lucasfilm President Kathleen Kennedy confirmed to EW that she sent Ford the "Solo" screenplay and got his approval, if he even read the damn thing:
“What [Ford] did so beautifully for Alden was he talked a lot about what he remembered when he first read Star Wars, and what George had done with Han. Who the character was and the conversations he had for so many years with George about how that character developed…He gave Alden that kind of insight which was invaluable. There were several times in the course of making the movie where Alden would actually recount some of the things that Harrison had pointed out. I think that was really, really helpful to him.”
Hell, even Ron Howard asked Ford for advice. The two go way back, even further than their movie debuts in 1973's 'American Graffiti."

“Harrison’s a very thoughtful actor and an artist, and I wanted to know what he learned about the character…He said that Han is always torn between that sense that he was, in a way, an orphan, and therefore both yearned for connection with people and struggled with it at the same time. I thought that was pretty interesting.”
Ehrenreich chimed in as well about their now famous lunch in an altogether separate interview:
“He said a great thing when I met him. ‘Tell them I told you everything you needed to know, and that you can’t tell anyone.’…I wanted to meet him because I just felt generally it wouldn’t be right to do the movie without some kind of contact with him, and I’m really glad I did. He was very, very supportive. And it’s just cool to have lunch with Harrison Ford.”