"Hi there, I'm sorry to disappoint you if you were expecting a lunatic with a knife or on some sort of rampage," he says.
"People like me with a diagnosis of mental illness face discrimination every day. Luckily for me, I have the support of friends and family to help me lead a full life."
The second film, Kids' Party, is subtitled "Schizophrenic man terrifies kids at party," but viewers go on to see a normal, happy occasion in which Stuart entertains the children with a giant spider made out of balloons.
Sue Baker, director of Time to Change, said: "Both films have been designed to attract members of the public who don't realise they are causing stigma and discrimination.
"One in four of us will have a mental health problem at some stage of our lives. It can happen to anyone.
"Stigma and discrimination wrecks lives. Yet everyone can make a change in their attitudes now."
Stuart Baker-Brown, who features in both films, said he wanted to show that people like him with schizophrenia did not conform to a stereotype.
"Helping to make the film has been part of a journey to take control of my life," he said.
"Rather than giving up I made a decision to change my life, which was borne out of a necessity to prove not only to myself and to all those around me, that a good level of both physical and mental recovery from schizophrenia is possible."
The YouGov poll was commissioned by Time to Change to coincide with the launch of the films.
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