What am I missing about the last one?

What does John Travolta have to do with Nicolas Cage??

Show me your IDs

i don’t get it

Help

Please explain ive stared at this for an hour and cant figure it out

Don’t got it

Pls

i’m sure it’s obvious but im kind of confused here

I kind of understand what the picture is saying but I don't understand the joke of there is one

I’ve seen this image a few times already but I never understood it. I need context.