Harvey simply "is". I've read so many of these reviews and agree with most of them. I read the negative ones with bewilderment. It seems that so many people read too many things, or expect more than this movie is, into this movie.
Harvey simply "is". Some people call this a screw-ball movie. I don't believe that it is. I don't really think that this movie CAN fit into a certain label. "Harvey" is unique unto itself.
Veta Louise, Elwood's sister, IS very shrill in this movie. It's because her daughter, who is well past marriage age, has no marriage prospects because the rest of their society is afraid that Elwood's craziness in inheritable. Part of Veta Louise's shrillness is that she AND her Mother both see Harvey, although not as much as Elwood does. She knows that Harvey is real. She even mentions that her Mother didn't tell her about Harvey before she died. Veta Louise, herself, saw Harvey in the bathtub one day.
I get the feeling, from Elwood, that I wouldn't have liked him very much before he met Harvey. From little pieces of information uttered by Veta Louise and Elwood, we find out that most of the current money came from Elwood, before he met Harvey, adding to what family money they had. After meeting Harvey, he decided to be "pleasant" instead of "smart", and did an about face character-wise. Apparently, even Veta Louise prefers him this way, but she is frustrated by Harvey being around. Her attempt to commit her brother is to get rid of Harvey, not Elwood. Veta Louise's daughter, Myrtle May, has not seen Harvey, and doesn't know that her Mother has seen Harvey.
I don't think that Elwood is an alcoholic at all. Just because somebody socializes at a bar, does not make them an alcoholic. From what the others in the film say, Elwood doesn't get drunk, although he may sit and nurse a drink. What he DOES is socialize.
I love this movie and have loved it since the first time I saw it. I highly recommend it, even if only for Jimmy Stewart's performance.