Young Dave Franco has always done an admirable job of drawing a line between himself and his arguably more famous big brother, James. While Dave dedicated his career to delivering steadily improving supporting performances in a bunch of comedic outings -- think '21 Jump Street' or 'Neighbors' -- James has spent the last few years doing, well, just a lot of things, including some questionable social media behavior.

How to put this? James Franco can be a big weirdo and Dave Franco isn't.

When Dave took to 'Conan' last night to chat about his career, Conan O'Brien grilled the actor about his brother's latest round of strange social media behavior. Dave, it seems, has no idea what James is doing either. Oh, family.

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