Dennis Learns to Whistle S10E10 - Dennis Learns to Whistle 1960
Dennis is very upset because he doesn't know how to whistle, So he spends all day trying to learn how.
- Released: 1960-12-04
- Runtime: 50 minutes
- Genre:
- Stars: Jay North, Joseph Kearns, Gloria Henry, Herbert Anderson, Sylvia Field
- Director: William D. Russell