He ended up being managing to be “helpful:”
“[George Lucas] had intended to just kind of stop by and say hi, and he stayed five hours,” [Lucasfilm President Kathleen] Kennedy says. “There’s even one little moment in a scene that — I can’t tell you what, sorry — but in the scene on the Millennium Falcon where George said, ‘Why doesn’t Han just do this.’”
In other words, George Lucas helped direct a small part of Solo.
Via Geektyrant. DAMMIT, WE DISCUSSED THIS. Lucas shows up on the set? Fine. He wants to look around? Fine. But if Lucas even looks like he’s going to be try to be “helpful” with the script, someone was supposed to call the dedicated sniper and give the order to shoot Lucas with the tranquilizer dart. That is the protocol. There is a checklist.
Somebody screwed this up. I want a name. I WANT A GORAM NAME.