A Christmas Carol...
Whatever your Christmas viewing preferences may be, any Connoisseur of Christmas will tell you that your #1 holiday movie you must see is the 1951 version of "A Christmas Carol", starring Alastair Sim as Scrooge. Sorry....but no other version even comes close. If you have not seen it, then you are really missing out. The only one that comes in a distant second is Mr. Magoo's animated version. Unfortunately, Mr. Magoo really belonged to a different generation and for the most part is lost to the present one. But there are still those of us who remember him from the kiddie Saturday matinees.
So...run, don't walk, to your nearby retail store and pick up a copy of the 1951 version. I guarantee you will not regret it.

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