All of the details here are fuzzy, so I will describe them as they are…
When I was about 4 or 5 years old, my parents sent me and my sister to a matinee film show at a cinema in RAF Akrotiri (my dad was stationed there in the early 1970s).
I don’t remember much about the films we watched, except for one of them, in which the protagonist character (which may have been Bugs Bunny, but I am not certain) was repeatedly being intercepted by the antagonist character (which may have been Marvin the Martian, but I am even less certain).
The action, I think, chiefly comprised the antagonist’s pitfalls backfiring on him, upon which he spoke the phrase “You may go, now”, allowing the protagonist to continue unmolested; this phrase was repeated throughout the show, as each of the successive attacks backfired. This phrase is the most-cemented memory of the thing (and therefore the detail that I think is most certain)
That’s as much as I really remember and at that point in my life I had uncorrected vision so whatever was actually happening onscreen will have been fuzzy in my perception at the time, not just in my memory some 50 years later (now). I remember at the time thinking that the antagonist character was an animated/anthropomorphised bomb of the classical black-sphere-with-a-hissing-fuse type, which is what makes me now think the character may actually have been Marvin the Martian, whose head appears to be just a black sphere with eyes.
Given that this showing took place in a cinema on an RAF base, I can’t rule out the possibility of this being some sort of information film about trust or security or reporting suspicious activity or something, rather than just a pure entertainment movie.
Can anyone identify the exact cartoon I am describing?