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Jill Valentine desapareceu após o final de Resident Evil: Apocalypse e veio nas cenas pré-crédito de Resident Evil: Afterlife com a aranha vermelha amarrada a ela. Não é explicado ainda como ela conseguiu o controle dela através daquela coisa de aranha. Mesmo no Resident Evil: Retribution não há explicação para isso.
Originally, Jill Valentine was to appear in Resident Evil: Extinction as the leader of the convoy. Her role would've have been major and involved a subplot concerning her resentment toward Alice for killing Angela while under the control of Umbrella and her eventual sacrifice for the convoy when she became infected by a zombified Carlos. However, Sienna was unable reprise her role as Jill because of scheduling conflicts with Eragon. As a result, she was written out of the movie and replaced with Ali Larter as Claire Redfield.(source)