Never a Dull Moment (1968)

While rehearsing for a part, actor Jack finds himself caught in a dangerous case of mistaken identity as he's confused for the notorious hitman Ace. Unbeknownst to him, Jack is whisked away to the lair of gangster Leo Smooth, who expects Ace to carry out a dangerous mission. Terrified for his safety, Jack reluctantly embraces the role, all the while plotting his escape from the heavily fortified hideout. Tension builds as he navigates the perilous situation, blending comedy and suspense in a race against time to reclaim his life.