“Wait, we switched bodies? Even though that’s been done in a zillion other movies, particularly between the years 1987 and 1989?” (Richard Cartwright/RICHARD CARTWRIGHT)

In the new movie “The Change-Up,” Jason Bateman and Ryan Reynolds engage in a classic (or, depending on your perspective, overdone) comedy conceit: the body swap. It’s happened in movies many times before. But if we give you the names of two stars who previously traded onscreen selves (or briefly engaged in some sort of identity borrowing), can you name the comedy in which they did it?

Take the quiz below to find out. No Google-cheating allowed!