It's the Girl in the Red Truck, Charlie Brown (1988 TV Movie)

Jill Schulz: Jenny

Photos 

Quotes 

• Jenny : [picks up a Frisbee for Spike]  You know, the kids next door are gonna be looking for this.

• [last lines] 

  Jenny : Jeff, what are we gonna do?

  Jeff : I think we're gonna give you as much time as you need then in a couple of years, when one of us has made our first million, we'll come back to the river and return to our little house. How's that sound, okay?

  Jenny : [smiles]  Yeah, thanks.

  Jeff : [as they look back where Spike has left]  You don't think we ought to look for Spike?

  Jenny : We don't have to. I already know where he is.

  Jeff : Where's that?

  Jenny : Out there... Home.

• [Spike swings a flyswatter acting like he's in a tennis court] 

  Jenny : Okay, McEnroe, le's go.