Rearranging the letters of 'Murder in Mesopotamia' (Agatha Christie book and movie) gives:
Poirot and mummies are.
(by Mike Mesterton-Gibbons by hand) (2009) (pending approval)
Means a Poirot immured.
(by Mike Mesterton-Gibbons by hand) (2009) (pending approval)
A Poirot made in summer.
(by Mike Mesterton-Gibbons by hand) (2009) (pending approval)
Other related anagrams without their own page:
"A Christie" -> "Charities?" (by Segura using Anagram Genius) (2003)
"Four Fifty from Paddington (or What Mrs McGillicuddy Saw) by Agatha Christie" -> "Why daffy Miss Marple got dirty doc with suffocating girl chum aboard train." (by Mike Mesterton-Gibbons by hand) (2010) (pending approval)
"Agatha Christie, Ten Little Niggers" -> "Their genitalia's strategic length." (by Mick Tully using Anagram Genius) (2009) (pending approval)