Though only 3 years older than Laurence Harvey, Angela Lansbury played his mom in this 1962 political thriller
The performances by 
Angela Lansbury, Laurence Harvey, and Frank Sinatra are some ... Sinatra, 
though as Maj. [DOC] [TLE] The Manchurian Candidate Reviews & Ratings - IMDb [PAR] Angela Lansbury, (although barely a few years older than Harvey was at the time
) plays his mother in a tour de force role.