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| budget = ~{{GBP}}5 million[{{cite web|url=https://www.thetimes.com/culture/film/article/i-swear-baftas-john-davidson-tldjw8s6f#:~:text=%E2%80%9CIt%2520obviously%2520put%2520a%2520lot,copious%2520involuntary%2520movements%2520and%2520swearing.|title=The low-budget Tourette's drama chasing Bafta glory|work=[[The Sunday Times]]|first=David|last=Sanderson|date=22 February 2026|accessdate=22 March 2026}}][{{cite web|url=https://deadline.com/2025/10/i-swear-kirk-tourette-syndrome-campaigner-global-breakouts-1236593919/|title='I Swear': Kirk Jones' Biopic Of Tourette Syndrome Campaigner John Davidson Is A Record-Breaking Look At A Unique Life – Global Breakouts|work=[[Deadline Hollywood]]|first=Nancy|last=Tartagilone|date=23 October 2025|accessdate=22 March 2026}}] |
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| budget = ~{{GBP}}5 million[{{cite web|url=https://www.thetimes.com/culture/film/article/i-swear-baftas-john-davidson-tldjw8s6f#:~:text=%E2%80%9CIt%2520obviously%2520put%2520a%2520lot,copious%2520involuntary%2520movements%2520and%2520swearing.|title=The low-budget Tourette's drama chasing Bafta glory|work=[[The Sunday Times]]|first=David|last=Sanderson|date=22 February 2026|accessdate=22 March 2026}}][{{cite web|url=https://deadline.com/2025/10/i-swear-kirk-tourette-syndrome-campaigner-global-breakouts-1236593919/|title='I Swear': Kirk Jones' Biopic Of Tourette Syndrome Campaigner John Davidson Is A Record-Breaking Look At A Unique Life – Global Breakouts|work=[[Deadline Hollywood]]|first=Nancy|last=Tartagilone|date=23 October 2025|accessdate=22 March 2026}}] |
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| gross = $10,4 million[{{Cite web |title=I Swear – Box Office Mojo|url=https://www.boxofficemojo.com/release/rl1122992129/weekend/ |access-date=]February 23, 2026|website=Box Office Mojo}} |
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| gross = $11.1 million[{{Cite web |title=I Swear – Box Office Mojo|url=https://www.boxofficemojo.com/release/rl1122992129/weekend/ |access-date=April 21, 2026|website=Box Office Mojo}}] |