“You only live twice” My dad took me to the cinema, on a rainy day when we were on holiday. It was the first Bond film I ever saw, and I was hooked from then. Only the Connery films though.
I’d go with Goldfinger. I remember seeing when it first came out – some of the stunts look fairly tame now but they were seriously ahead of their time (ejector seat!) Also some classic dialogue + vintage Connery.