On Expenses is a 2010 British television film directed by Simon Cellan Jones and starring Anna Maxwell Martin as Heather Brooke and Brian Cox as Michael Martin.
The film documents the true story of journalist Heather Brooke's attempt to get expenses claims of Members of Parliament released under the Freedom of Information Act 2000 and Speaker Michael Martin's battle to prevent it. Brooke herself had a non-speaking cameo in the film as a female MP in the scene where Martin assumes the position of Speaker.
| Anna Maxwell Martin | Heather Brooke |
| Brian Cox | Michael Martin MP |
| Neil Pearson | Hugh Tomlinson |
| Alex Jennings | Andrew Walker, head of UK Parliament Fees Office |
| Tim Pigott-Smith | Alan Keen |
| David Calder | Stuart Bell |
| Sam Graham | David Maclean MP |
| Alan Parnaby | Chris Huhne |
| Geoffrey Beevers | Douglas Hogg |
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