Star Wars Episode 4: A New Hope - R5-D4
When R5-D4 breaks down, Luke says, "There's something wrong with this R2 unit!"
Note that the droid's name is R5-D4, not R2-D4. R5-D4 is not an R2 unit. Luke should've said, "Something's wrong with this astromech droid!" That's more accurate.
on 05-26-2001 and