Listen to the Let's Watch A Full-Length Movie on YouTube podcast and watch Just You and Me, Kid (1979), embedded above, at the same time. Start with the podcast. Click here to launch the podcast in separate browser tab.
Can't get anymore high concept than pairing two known personalities for a plot-less premise. Here, beloved wrinkly entertainer George Burns crosses paths with child actor Brooke Shields, as she hides (naked!) from drug dealers in the old man's car. Their adventures make for pleasant television, but this was a theatrically-released movie. And to prove it's a real movie, Just You and Me, Kid reenacts the poker scene from Sunset Boulevard (1950), but instead of Buster Keaton, it's Keye Luke, etc.