Looks like Sony (NYSE:SNE) will have a lion's head displayed proudly at its corporate offices. The Japanese electronics giant seems to have wrapped up the deal to purchase Metro-Goldwyn-Mayer (NYSE:MGM).

MGM has been in play for several months now, leaving shareholders and speculators wondering feverishly who will end up with such movie franchises as James Bond and Rocky. Time Warner (NYSE:TWX) wanted the movie assets, but unfortunately, it couldn't achieve the value that it wanted. This isn't surprising, since Time Warner needs to be as antiprofligate these days as possible; that company's main concern is saying bye-bye to its long-term liabilities.

It's too bad, since I believe Time Warner would have been able to maximize the value of the library in a much better fashion than Sony will. Time Warner's cable and TV assets would have offered optimal opportunities, in my opinion. Sony will do well with the library, certainly, but one thing that has to be kept in mind is that Sony isn't going this deal alone. Comcast (NASDAQ:CMCSA) and some other financing groups are involved. It has been reported that there exists the possibility of turmoil and tumult with those groups over the exact structure of the deal. So nothing can be considered set in stone at this point. Nevertheless, the deal seems in place. The overall value is $4.84 billion, which translates to $12 a share plus acquisition of debt.

Individual investors should be wary of entering any of these stocks solely because of these news catalysts. If one is interested in Time Warner or Comcast or Sony, one should have other reasons to invest instead of complete reliance on the MGM library buy. I believe the asset will generate a quality revenue stream over time and has the potential for growth (so long as costs are kept to a judicious level), but in the overall scheme of things, Sony shouldn't be traded for the long term on the acquisition.

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Fool contributor Steven Mallas owns none of the companies mentioned.