Rhys Ifans on Portraying Parkinson’s in 'Onwards and Sideways': 'I Really Did My Homework'

Less than a year after 'I Swear' helped explain the complexities of Tourette’s Syndrome on the big screen, 'Onwards and Sideways' is looking to do the same for Parkinson’s Disease. From director John Madden ('Shakespeare in Love') and written by Paul Mayhew-Archer—who was diagnosed with Parkinson’s in 2011—the film is set to release in U.K. cinemas.

Rhys Ifans, who plays the lead role of a man living with the condition, spoke candidly about the responsibility that came with portraying such a nuanced illness on screen. 'I really did my homework,' he said, emphasizing the extensive research and personal interviews he conducted before taking on the role.

The actor’s preparation included spending time with individuals who live with Parkinson’s, observing their daily routines and understanding how the disease affects not only physical movement but also emotional resilience. 'It’s a frightening task,' Ifans noted, 'because you don’t want to misrepresent or sensationalize something that is so real for so many people.'

The film explores themes of aging, acceptance, and the gradual loss of autonomy that comes with Parkinson’s. It doesn’t shy away from showing the more difficult aspects of living with the condition, including tremors, speech difficulties, and the emotional toll it takes on both patients and their loved ones.

Paul Mayhew-Archer, who wrote the screenplay based on his own experience, worked closely with Ifans to ensure authenticity. 'The script was very much about the human side of this disease,' he said. 'It’s not just about the symptoms—it’s about how people adapt and find strength in unexpected places.'

Director John Madden, known for his sensitive portrayals of complex characters, approached the film with a focus on realism rather than melodrama. 'We wanted to avoid romanticizing the condition,' he explained. 'The goal was to show the reality of what it means to live with Parkinson’s in the modern world.'

Ifans emphasized that the role required him to not only learn how to move differently but also to understand the psychological layers of living with a chronic illness. 'You wear a costume, and that costume is the disease,' he said. 'It’s not just about the physicality—it’s about the mental and emotional journey.'

The film’s release in the UK has been met with early praise for its honest depiction of a condition often misunderstood by the general public. Critics have noted how Ifans’ performance brings depth to a character who might otherwise be reduced to a stereotype.

With 'Onwards and Sideways,' the filmmakers aim to spark conversations about Parkinson’s, encouraging greater awareness and understanding. For Ifans, the experience has been both challenging and rewarding. 'It’s important that we tell these stories with honesty and respect,' he said. 'There’s so much more to this disease than people realize.'

The film is set for wider release in other international markets following its UK debut, with hopes of expanding dialogue around neurological conditions and their impact on everyday life.

As Ifans continues to take on challenging roles that explore the human condition, his commitment to authenticity remains a cornerstone of his craft. 'I don’t want to be a celebrity actor,' he said. 'I want to be a storyteller who helps people see themselves in these characters.'

The film is expected to generate significant attention during upcoming award seasons, particularly for its nuanced portrayal of a complex medical condition.