Vivendi SA said on Wednesday it is looking into the feasibility of splitting the French media group into four entities. The management board looking into the plan said each of the four entities would be listed on the stock market. The supervisory board of the global leader in culture, entertainment, media and communications gave its approval to structure the split around four entities such as Canal+, Havas, a publishing and distribution entity, and an investment company. Canal+ Group has a subscriber base of over 25 million in nearly 50 countries. Further to the acquisition of M7 and SPI, the …