According to some of the people that worked with him, Peter Sellers could be a nightmare.
Hungarian director Peter Medak had a devil of a time with Sellers. In 1973, they were in Cyprus filming the pirate comedy, Ghost in the Noonday Sun. Medak struggled to get any co-operation from Peter Sellers throughout the production. From turning up late on the set to demanding script rewrites, Peter Medak felt the pressure was getting too much. After 67 long days, filming finally came to an end.
Blake Edwards came to regret working with Peter Sellers, after a promising, successful first collaboration. Edwards claimed Sellers’s mental health had deteriorated when making their last two films together. He felt the actor was difficult to talk to and witnessed sudden changes in his general mood. All of this caused a lot of tension on the set.