Yes but if you enjoyed Goldeneye, (and who wouldn't) then you would pay for each level, and end up having paid for the full game.
However, if it is a shittier game, like Sonic 2006 (to steal from another current thread) then you may well give up after the first level having not paid anything. I don't think that's too crazy.
With the film analogy, if you walked out after the first 20 mins of a film, and only had to pay for that 20 mins, you would be 'quids in' as some people (not me) might say.