He played Vice Admiral Phillips in the drama series Dunkirk, for the BBC, 2004 and General Alanbrooke in Into the Storm 2009, with Brendan Gleeson, for HBO television.
The film Gangs of New York (2002) features a character called "Walter 'Monk" McGwin" (played by actor Brendan Gleeson) who is loosely based on Eastman, but this is anachronistic, as it takes place decades before his rise.
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In the 2007 film Beowulf directed by Robert Zemeckis, Wiglaf's role (played by Brendan Gleeson) is larger; he is present in the movie from the first introduction of Beowulf and the Geats to the end when Beowulf vanquishes the dragon and dies.