Could you imagine if this was a stipulation in EVERY film?
Patricia Neal - 'Why Mr. Carpenter: I see you've neutralised the entire planet's electrical systems. Why, this really is the day the earth stood still'.
'Ah Mr. Bond .... You may have evaded Blofeld's lazer, but you will not escape Emilio Largo's exploding whoopee cushion so easily. You will succumb to severe thunderball I fear.'
Peter O'Toole's chat up line in What's New Pussycat, is, what's new pussycat. There's a ton of films where a character quotes the films title. I'll have a think & come back.
Gotta be thousands of these. Certainly most movies with character names.
Yeah, it's a bit silly counting those.
The intriguing thing is when the film has a long and cumbersome or otherwise artsy title, but it's still repeated in the film. There was a film recently where I saw an example like that, but I can't for the sake of me remember what it was.