Trailer
 | Simon Callow as Sir John Osgood |
 | Stephen Fry as Sir Anthony Silk |
 | Celia Imrie as Miss Rapier |
 | Paul Giamatti as Johnson J. Johnson |
 | Ned Beatty as Gen. Ed Sheppard |
 | Bruce Cook as Patrick Smash |
 | Rupert Grint as Alan A. Allen |
 | Bronagh Gallagher as Mrs. Smash |
 | Victor McGuire as Mr. Smash |
 | Adam Godley as Placido P. Placeedo |
 | Leslie Phillips as Judge |
 | Robert Hardy as Doctor |
 | Anna Popplewell as Denise Smash |
 | Josh Herdman as Damon |
| John Higgins as Paediatrician |
 | Samuel Morgan-Davies as Patrick, Age 3 (as Sam Davies) |
 | Daniel Williams as Patrick, Age 5 |
| Scarlet Billham as Denise, Age 7 |
| Josh Herdman as Damon (as Joshua Herdman) |
 | Mark Heenehan as Todd Banner |
 | Devon Anderson as Dan |
| Jock Norton as Jake |
 | Chris Stanton as Smooth Teacher |
 | Keira Knightley as Music School Student |
 | Del Synnott as Music Student |
 | Vicki Pepperdine as Reporter |
 | Adrian McLoughlin as Bob Rodgers |
 | Ernesto Tomasini as Italian Concierge |
 | Geoffrey McGivern as Metallurgist |
| Dick Ward as Prison Guard |
 | Stephen Boswell as Prison Priest |
 | John Arthur as Prison Governor |
 | Glenn Wrage as Pilot |
 | Paul Rogan as USSC Scientist |
| Gillian Maguire as Emmanuele |
| Alvin Chitroda as Taj |
 | Pablo Duarte as Jose |
 | Colin Stinton as Foster |
 | John Hodgkinson as Launch Controller 1 |
 | Nigel Betts as Launch Controller 2 |
 | Rory MacGregor as Launch Controller 3 |
| Writing | |
| Peter Hewitt | Screenplay |
Directing | |
| Peter Hewitt | Director |
Writing | |
| Phil Hughes | Screenplay |
Editing | |
| Michael Parker | Editor |
Sound | |
| Guy Fletcher | Original Music Composer |
Camera | |
| Andy Collins | Director of Photography |
| Keith Sewell | Steadicam Operator |
| Mark Milsome | Focus Puller |
| Tobias Eedy | Clapper Loader |
Sound | |
| Rupert Gregson-Williams | Original Music Composer |
