Lordy, Lordy, who is 40?

In 1974 Disney made Herbie Rides Again, The Bears and I, The Castaway Cowboy and The Island at the Top of the World (I haven't heard of most of these)... ...came movies I have heard of like The Godfather: Part II, The Texas Chainsaw Massacre, Young Frankenstein, Blazing Saddles, Chinatown, The Exorcist, The Great Gatsby …