5. Cameron Diaz
Given her status as a semi-regular staple of Hollywood films for the last twenty years, its somewhat hard to believe that Cameron Diaz only turned forty last year. Her career may slow down somewhat as she becomes gradually more unsuitable for typical leading female roles, perhaps evidenced by the fact that she has only one film (The Counselor) out this year. As a result, she was scheduled to cameo in This Is The End, presumably to die alongside the less instantly recognisable likes of Aziz Ansari and David Krumholtz. Budgeting issues, however, resulted in the film having to shoot in Louisiana, as opposed to Los Angeles, where the film was originally going to be shot to make celebrity cameos easier in a logistical sense. As a result of this, Diaz was no longer able to meet her commitment to the film, dropping out.