They may be classics, but theyre not without mistakes. For this list, well be ranking the instances where goofs or mistakes werent caught, during the production of these old-school Hollywood classics. Our countdown includes Singin in the Rain, North by Northwest, The Wizard of Oz, and more! Were YOU aware of all of these? Let us know in the comments!

Watch more great mistakes videos here:
Top 10 Mistakes That Were Left in DreamWorks Movies - https://youtu.be/U_T1JcXy6N8
Top 10 Mistakes That Were Left in 21st Century Movies - https://youtu.be/Tr15iiwZMC8
Top 20 Mistakes That Were Left in Disney Movies - https://youtu.be/Wdp4z7HjuvU

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#Mistakes #Goofs #Bloopers #Hollywood #Classics