This collection of parkrun venues have all been used as filming locations for movies. I've also listed venues where the filming is very local and worth noting.
It's a work in progress, so this list will grow as I research the venues.
Black Park - Captain America: The First Avenger, Harry Potter (multiple), Atonement, Cinderella, Stardust, Casino Royale, Goldfinger, Octopussy, Carry on Cowboy, Carry on Dick, Carry on at your convenience, Carry on Henry, The Charge of the Light Brigade, Dracula (multiple), (more to follow)
Bois de Boulogne - The Da Vinci Code
Crystal Palace - The Italian Job (You were only supposed to blow the bloody doors off)
Ellenbrook Fields - Saving Private Ryan
Forest of Dean - Star Wars: The force Awakens - Forest scenes filmed in Puzzlewood, which is part of the forest.
Fulham Palace - The Omen
Gunnersbury Park - Bend it like Beckham, The World's End
Hampstead Heath - Notting Hill, Scenes of a sexual nature.
Keswick - Star Wars: The Force Awakens - Derwent Water used as approach to Maz Kanata's castle.
Lyme Park - The Awakening
Newbury (Greenham Common) - Star Wars: The Force Awakens - The Resistance base
Osterley - The Dark Knight Rises, The Duchess, Miss Potter, Mrs Brown, Great Expectations, The Young Victoria, (more to follow)
Richmond Park - Billy Elliot, Sherlock Holmes: A Game of Shadows, Into the Woods, Get Santa.
Southwark Park - Stan Lee's Lucky Man (TV).
Tooting Common - Snatch (scene filmed in the Lido)
Tring - Avengers: Age of Ultron - Tring School interior used (the school and the park were originally The Tring Park Estate)
Yeovil Montecute - The Libertine, Sense and Sensibility, Wolf Hall