Free Wheeling blooper?

[bwsmith]

Near the end of the short, after the taxi crashes into the haystack, Dickie says "That was fun, let's do it again", and Spanky responds, "Yeah, let's do it again."

In the background, it looks like Spanky is in front of a blank wall, presumably the wall upon which they superimposed the footage of travelling down the hill...

[floradoradolly]

I haven't noticed that, but I still can't figure out what happens to Dorothy DeBorba in this film. It shows her getting into the Gang's car and riding around, but when/where does she get out? Then later, she's driving around with Dickie's parents. Is she supposed to be Dickie's sister?