The red head played villainous vampire Victoria in the first film, and will reprise the role in the upcoming sequel New Moon.
Lefevre was "stunned" and "hurt deeply" to learn that producers at Summit Entertainment had decided to replace her for the third movie, Eclipse, handing her part to Bryce Dallas Howard.
Lefevre admits she had signed up to star in another movie, Barney's Version, and the production slightly overlapped scheduled shooting on Eclipse - but never thought she "would lose the role over a 10 day overlap".
Her comments have infuriated executives at Summit, who have released their own statement to clarify why they dismissed Lefevre.
The producers claim the actress waited over a month to tell them about her plans to star in Barney’s Version - and they could not change the movie schedule to allow her to leave the shoot 10 days early.
The statement reads, "We at Summit Entertainment are disappointed by Rachelle Lefevre’s recent comments which attempt to make her career choices the fault of the studio. Her decision to discuss her version of the scheduling challenges publicly has forced the Studio to set the record straight and correct the facts.
"It was not until July 20th that Summit was first informed of Ms. Lefevre’s commitment to Barney’s Version, a commitment we have since been advised she accepted in early June. We feel that her choice to withhold her scheduling conflict information from us can be viewed as a lack of cooperative spirit which affected the entire production.”
“Ms. Lefevre took a role in the other film that places her in Europe during the required rehearsal time, and at least ten days of The Twilight Saga: Eclipse's principal photography. This period is essential for both rehearsal time with the cast, and for filming at key locations that are only available during the initial part of production.”