This is a request from @LeahWatt07!

What they would do.

John: *would have a personal connection with Carl, having a grouchy demeanor himself*

Paul: *would be in love with Doug*

George: *would only watch it because it has a floating house in it*

Ringo: *would start bawling five minutes into the movie*

What they would say.

John: I feel for you, Carl! He's just a clean old man, you know.

Paul: Look, it's a talking dog! A TALKING DOG, John!

George: I dig the house. That house is awesome. I'd do the same with Crackerbox Palace. The only problem is I'd need three million balloons.

Ringo: *blowing his nose* Why are we watching this sad movie? Can't you people see that poor man has suffered enough? WHYYYYYYY?