Exhibit A is not from a movie but a british sitcom series.
"Blackadder", if I'm not mistaken. Typical absurd-commedy style. I don't know which season this is from but do know the storyline (the scene of the image) is set on the 1st world war. As opposed to earlier seasons that started with more historic brittish events of kings and knighthoods and stuff.
p.s. Oops, I just noticed this message had a huge gyro error when fired. Back to topic. Cool mod
'Fette beute'!!!