I don't see how I can say anything which will help anybody get into a movie more than they're predisposed to do.
Citizen Kane doesn't make my Top 100 and it doesn't even make my Top 5 of 1941, but these ratings and lists really have little to do with the merit of an individual film, and if I were told that I could teach a class in film, using just one film to study various forms of film communication, I'd probably have to pick
Citizen Kane because it did basically reinvent films in the most dramatic ways possible since the changeover from silents to talkies.
On a technical level, the film is phenomenal, from Gregg Toland's deep focus, often expressionistic photography to the weird ways the film tells its story, starting out as a newsreel biography of the leading character after his death and then having the interviewer question Kane's friends and enemies, thus having multiple "narrators" tell the story of the biggest man in the history of the U.S. during the early 20th century. The acting is all very realistic and Welles, although he didn't pioneer the technique, used overlapping dialogue in new, powerful ways which certainly made him the envy of later directors such as Robert Altman. Bernard Herrmann's musical score is also powerful and poignant, and Welles used strange editing techniques (for example, editing to the cackle of a parrot) and special effects effortlessly, not to show off but to try to keep the film moving cinematically. I find the story of the little boy who lost the only love of his life and tried to replace it with money and things a touchingly human tale, so when you call what I find one of the strongest endings of all-time lame, I'm left to scratch my head. Yes, the combo of the fire, the sled "melting", the musical score, the smoke billowing from the chimney all showing Charlie Kane's life and dreams going up in smoke, it really makes me think that I'm seeing something special. (I certainly never had any trouble getting into it, right from the "No Trespassing" beginning with the awesome snow globe scene and weird photographic shot of the nurse through the broken glass.) Then, after the ending, Welles closes with unique end credits, even giving DP Toland the last credit.
Maybe some people give the movie extra points because Welles had to fight William Randolph Hearst just to get the film released. Hearst wanted to destroy the film, and even though he was unable to do it, he did just about break Welles and kept him from making films the way he wanted to for most of the rest of his life. I've also been to San Simeon (Hearst Castle) many times, so I can see how close the life of Kane resembles that of Hearst, so maybe the story has more meaning to me than some. Then again, I loved
Citizen Kane before I ever went to Hearst Castle or took a film class in college.
As I said, I can't change anybody's mind about anything, but if you truly want to see if you missed something, I'd rewatch the movie sooner rather than later. However it turns out, keep watching movies and telling us what you think.