In a 2008 film, "The Edge of Love," Caitlin was played by Sienna Miller, in a story that reflects the relationship between Caitlin, Dylan and Vera Philips, Dylan's childhood friend and distant cousin. A second movie, "Caitlin", with Miranda Richardson and Rosamund Pike depicting the title character at different points in her life, was to be produced the same year, but failed to reach the screen. Caitlin Thomas is played by Kelly Reilly in the 2014 film chronicling her husband's first tour of the US, "Set Fire to the Stars". Romola Garai portrayed her in the 2016 film "Dominion" opposite Rhys Ifans as Dylan Thomas.