Superman: The Last Family of Krypton is a comic book limited series, published in 2010. It depicts what could have happened if Superman's parents also arrived on Earth.
Plot
In this reality, Jor-El was able to save himself and his wife Lara and accompany their son Kal-El to Earth, where Jor-El sets up the corporation JorCorp while Lara establishes the self-help movement "Raology" based on the native religion of Krypton. Lara is willing to adapt to life on Earth, arranging for Kal-El to be discreetly adopted by the Kent family so that he can live a more normal life, and later has twin children, Bru-El and Valora, whose "stunted" genetics resulting from their birth in the unnatural environment of Earth mean that they only possess half of the superhuman potential of their brother. By contrast, Jor-El gradually becomes obsessed with scientific development above all else, even spending a large portion of his time in a chair that downloads information about Earth directly into his brain so that he can keep track of every possible development on Earth and thus prevent a similar disaster befalling his adopted home as happened on Krypton. Although his actions hinder human progress by keeping the people of Earth dependent on him, Jor-El argues that Earth only needs his family to protect them, even telling the Guardians of the Universe not to proceed with their plans to appoint a Green Lantern to Earth.
While attending a dinner in Gotham, Lara is able to save Thomas and Martha Wayne when she intercepts Joe Chill's attempted mugging, thus unknowingly preventing the creation of Batman. The Guardians also reveal to Jor-El that his drone watchers have prevented Oliver Queen training to become Green Arrow, and one of the twins' flights blocked the lightning that would have led to