I have zero interest in inspirational sports movies and have never seen Rudy.
Well, here's a spoiler. If you think it's a movie about an underdog who helps his team win a big game, it's not. Does he perhaps manage to come into a game and and help his team in some marginal way? Also, no. Okay, perhaps he is stricken with a rare disease and inspires his team from a hospital bed? Wrong. Maybe he's overcome having a 13 toes, a hook for a hand and plaque psoriasis to make the team?
No, he's healthy. He's just not any good. And he's also so obnoxious you want to punt him through Touch Down Jesus praying hands.
See, I have the entirely opposite take and despite the historical inaccuracies* I think the message here is a great one that sometimes a person's journey to mediocrity** can be inspiring in of itself and there is no massive payoff needed. As such, I think if Rudy happened to be forced into some true game situation and make a play (say, for example, the two guys ahead of him on the depth chart get hurt in subsequent plays or some such, and he came in and forced a fumble in a big spot), it would have cheapened the movie as it wasn't about winning a game it was about working hard to achieve a goal. Further, the movie does a nice job of weaving in the motif about a kid finally proving himself to his father and older brothers as I'd argue the climax of the movie is Rudy running out of the tunnel to his father's sheer delight after decades of toiling away in a blue collar factory with no real prospect for an improved life. The point is, in context what Rudy did, while not objectively noteworthy, in context was pretty incredible considering at any point Rudy could have simply packed it up, went back home and worked in the plant for the next few decades, and nobody would have batted an eye but Rudy would have never been happy.
To me, Fortune sums up the movie the best when he says: "You're 5 foot nothin', 100 and nothin', and you have barely a speck of athletic ability. And you hung in there with the best college football players in the land for 2 years. And you're gonna walk outta here with a degree from the University of Notre Dame. In this life, you don't have to prove nothin' to nobody but yourself. And after what you've gone through, if you haven't done that by now, it ain't gonna never happen. Now go on back."
In short, the hard work and dedication of some kid with no natural talent to get to play football at a level only the top fraction of a percent get to is pretty damn awe inspiring to me (as I was also a kid who loved sports but wasn't genetically athletically gifted or talented). So, the movie is uniquely inspirational with his drive to mediocrity.
*Yeah... the more I learn about the historical inaccuracies the more it does lessen the movie. They did poor Dan Devine dirty and I have a lot of sympathy for him and his family as all he did was give a kid a chance and he was rewarded by being turned into a Disney villain. And the real life Rudy is pretty much a self-absorbed self-promoter by all accounts.
**And if you disagree that watching somebody journey their way to mediocrity with effort and hard work isn't inspiring, well then talk to your wife because that's how she describes your bedroom prowess. Heyy ohhhh!