Oswald didn't "go to the movies" just because he "felt like it", why?
Despite that Oswald was indeed a person with great interest in politics he didn't care to watch the motorcade.
Despite shots were fired at the motorcade and that some claimed that the president had been shot, what does he do? He leaves Dealey Plaza without hanging around to find out more about what happend.
After having arrived back home only to leave again immediately, when leaving his room his landlady is watching the news. Yet he does not stop for even just a moment to know more about what happend
We know from his radio interviews that Oswald was knowledgeable on international affairs, that he was eloquent and knew how to handle loaded questions.
(Link to radio interviews:)
Kennedy had been standing up for civil rights for the "Freedom Riders" and received the socialist leader of Ghana which Oswald knew about. Whenever Oswald would have had time to gather so much information we don't know but one thing is certain, under "normal circumstances", Oswald would definitely have shown great interest in what happend that day.
His actions were not those of a TOTALLY innocent Oswald ...