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If you feel like doggin` it, here is a small catalog of possibly disillusioning data about some of your favorite cinematic canines:
1. Rin Tin Tin-named for a French charm
2. Lassie-there were several, some were males, and one chased motorcycles and barked constantly
3. The Shaggy Dog-bought for $2 at a pound
4. Old Yeller-bought for $3 from a shelter; his real name was Spike
5. Big Red-was, in fact, every inch the champion Irish setter the movie made him out to be
