This list makes no sense. How can anyone claim that Pluto Nash ruined Eddie Murphy's career? He's still making movies. Same for George Lucas. Same for Warren Beatty. Etc., etc. And some of them do well (see, eg, "Daddy Day Care" for Murphy).
A list like this could be done, but it would be films that marked the delineation between a star's successful films and their not so.
For example: I would say that "Junior" (the one where he played the world's first pregnant man) ruined Arnold Schwartzenegger's career.
Look him up on IMDB.
Before "Junior, was a string of hits, culminating in "True Lies" After "Junior," there's not a single real hit, and a number of real bombs (Batman and Robin being the most famous).
Even "T-3" was a disappointment. Now he's entering politics.
