Natalie Portman's problem-plagued western Jane Got A Gun will no longer hit cinemas this year (14) following a series of delays and casting changes.

Filming on the project was scheduled to start last year (13), but director Lynne Ramsay dropped out of the movie, prompting producers to seek out a new filmmaker.

Gavin O'Connor stepped in to replace her and took on a cast that included Portman, Noah Emmerich, Joel Edgerton and Ewan McGregor.

The project has also undergone numerous cast changes - Michael Fassbender, Jude Law and Bradley Cooper have all bailed on the film. Edgerton took over the role vacated by Fassbender, while McGregor replaced both Law and Cooper.

Executives at Relativity Media and the Weinstein Co. were hoping to release the new film in August (14), but on Thursday (24Apr14), they moved the date the film will hit cinemas back to February, 2015.