It was because of the lack of diversity in Oscar award nominations that many leading Hollywood celebrities refused to attend the award function.
The University of Southern California’s Annenberg School for Communication and Journalism along with Media, Diversity and Social change Initiative conducted a study on this. The study showed that, indeed there is a lack of diversity in Hollywood
A total of 414 TV series and movies that released in the past 2 years were studied for diversity of sexuality, gender, race and ethnicity. The study has found that only one third of the speaking roles were for female. Only 2 percent were lesbian, gay, bisexual of transgender and 28.3% were minorities.